Appendix A
HTML Tags
by John Jung
CONTENTS
There are many HTML elements, and each has its own set of attributes
that it can use. This is a complete list of HTML tags, their corresponding
attributes, and a description of what they do.
You can put in a comment in your Web document by enclosing it
between the <!-- beginning marker, and the --> ending marker.
Some browsers will not properly handle HTML-related characters
within the comments. Also, not all browsers correctly recognize
the double dashes as being needed for the start of the comment.
This HTML tag has no attributes.
The following is an example of <!-- -->:
<!-- This line of text will only be seen by people who look at the HTML source. -->
The Anchor HTML tag is an important element for hypertext links
of any sort. The Anchor element type can have the following attributes:
- CHARSET-This is a proposed
attribute to HTML for internationalization. It indicates what
type of character set is used by the hypertext link.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- HREF-This indicates the
destination URL.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
intended to supercede the NAME attribute.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphen-ation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- METHODS-This indicates
a list of HTTP METHODS supported
by the object. This is a little used and little supported attribute.
- NAME-This defines the
current line as a destination point. These points are used for
internal jumps or jumps to a specific line.
- REL-When used with the
HREF attribute, this indicates a particular relationship with
the destination. This is a little used and little supported attribute
and will probably be superseded in the future.
- REV-When used with the
HREF attribute, this is the inverse of the REL attribute. This
establishes a backwards relationship between the current Web page
and the URL that brought up this HTML document. This is a little
used and little supported attribute and will probably be superseded
in the future.
- SHAPE-This proposed attribute
is supposed to indicate the corresponding clickable region in
a FIG element. This was originally intended as a substitute for
imagemaps.
- TARGET-This indicates
the name of the window to be used when going to the hypertext
link. If the window doesn't exist, the browser will open up a
new window, and assign it that name. This attribute is an extension
introduced by Netscape.
- TITLE-When used with
the HREF attribute, this attribute indicates the title of the
destination URL. This is a little used and little supported attribute.
- URN-The Universal Resource
Number was originally intended as a better method of referring
to destination links, instead of URLs. It is currently not used
or supported.
The following is an example of <A>:
<A HREF="http://www.mysite.com/" NAME="destination1"> Sample anchor
The proposed Abbreviations tag will change some of the enclosed
text into abbreviations. This does not change the actual text,
just how it's displayed by the browser. This is a work in progress.
The Abbreviations tag can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <ABBREV>:
<ABBREV>Some of these words will be abbreviated when displayed.</
The proposed HTML 3 tag, <ACRONYM>, will display the enclosed
text with acronyms. This does not change the actual text, just
how it's displayed by the browser. This is a work in progress.
The Acronym tag can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <ACRONYM>:
<ACRONYM>Some of these words will be reduced to acronyms when displayed.</ACRONYM>
The <ADDRESS> tag is used to indicate an address, typically
the e-mail address of the Web author. The Address element can
have the following attributes:
- ALIGN-This is a proposed
attribute to HTML for internationalization. It's used to indicate
the alignment of the text in the address. It can have the value
of center, justify,
left, or right.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- NOWRAP-This is a proposed
attribute to HTML 3 to indicate that the address should not be
word wrapped.
The following is an example of <ADDRESS>:
<ADDRESS>This page was created by me.</ADDRESS>
This proposed HTML extension was introduced in Netscape Navigator.
When used, browsers that can run JAVA applications will run the
specified JAVA applet. Parameters that you want to pass to a particular
JAVA application can be done with the <PARAM> tag. <APPLET>
can have the following attributes:
- ALT-This attribute indicates
to browsers that recognize the <APPLET> tag an alternate
text string to be displayed. This behaves the same as the ALT
attribute for the <IMG> tag.
- ALIGN-This attribute
indicates the display alignment of the JAVA applet. It can have
the following values: absbottom,
absmiddle, baseline,
bottom, left,
middle, right,
texttop, and top.
- CODE-This indicates the
file that contains the JAVA applet program. The file name indicated
cannot point to an absolute URL.
- CODEBASE-You specify
the base URL for the JAVA application with this attribute. This
is used in conjunction with the CODE attribute.
- HEIGHT-This indicates
the initial height of the display for the JAVA applet. The value
must be specified as the number of pixels.
- HSPACE-This indicates
how many pixels to reserve for the JAVA applet, horizontally.
- NAME-This attribute gives
a name to the JAVA applet that is about to be executed. This is
useful when you want different applets on the same Web page to
talk to each other.
- VSPACE-This indicates
how many pixels to reserve for the JAVA applet, horizontally.
- WIDTH-This indicates
the initial width of the display for the JAVA applet. The value
must be specified as the number of pixels.
The following is an example of <APPLET>:
<APPLET CODE="myprogram" WIDTH=200 HEIGHT=200>My first JAVA
This proposed extension to HTML by Netscape is used to create
client-side imagemaps. This tag is intended to specify one clickable
region on a graphic. <AREA> has the following attributes:
- ALT-This provides a text-based
alternative to non-graphical Web browsers. Currently, this has
not been defined.
- COORDS-This indicates
the position of the specified area on the image. The coordinates
are put in quotation marks, and the coordinates are separated
by commas. The upper left-hand corner of the image is "0,0".
- HREF-This specifies the
destination URL if this area is accessed.
- NOHREF-This is used to
indicate that a region isn't linked to anything.
- SHAPE-This is used to
indicate the shape of the clickable region. If this attribute
is rect, then COORDS
must indicate the coordinates for the upper-left corner followed
by the lower-right corner. For the circle
value, COORD indicates the
coordinates of the center followed by the radius. As for the polygon
value, COORD indicates a
successive set of coordinates. Each pair of coordinates indicates
a vertex of the polygon.
The following is an example of <AREA>:
<AREAD COORD="0,0","100,100" SHAPE=rect HREF="http://www.mysite.com/" ALT="Go to my site!">
This proposed HTML 3 tag is used to indicate the name of an author.
<AU> can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <AU>:
The authors of this book are <AU>Mark Brown and John Jung</AU>.
This tag will make whatever text is enclosed within it display
in a bold font. The <B> tag can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <B>:
This word is in <B>bold</B>.
This is a proposed HTML 3 tag that will display something as a
banner. The text in this tag will not scroll with the rest of
the HTML document. It's mainly intended to be used for company
logos or navigational aids. You can use the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <BANNER>:
<BANNER>This home page was created by MeSoft.</BANNER>
The <BASE> HTML element is used to indicate the default
location of relative URL links. This is useful in the event that
you move your home page to another computer. If this happens,
all relative links on that page will not have to be updated. This
tag can have the following attributes:
- HREF-This indicates the
baseline URL that relative links will be based upon.
- TARGET-This indicates
the name of the window to be used when going to the hypertext
link. If the window doesn't exist, the browser will open up a
new window and assign it that name. This attribute is an extension
introduced by Netscape.
The following is an example of <BASE>:
<BASE HREF="http://www.mycomputer.com/homepage/mystuff/">
This HTML element is used to indicate the default font size for
the current HTML document. <BASEFONT> was originally introduced
as an extension by Netscape. It has only one attribute: SIZE.
This attribute indicates which default font value to use. By default,
the font value used is 3.
There are seven possible values for this attribute: 1,
2, 3,
4, 5,
6, and 7.
These do not indicate point sizes, but rather a predetermined
font size.
The following is an example of <BASEFONT>:
<BASEFONT SIZE=4>
This proposed tag is intended for the internationalization of
HTML. The <BDO> tag is used to indicate how text should
be displayed by the browser. It has the following attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <BDO>:
<BDO DIR=ltr>This will cause text to flow from the left to the
Microsoft introduced this proposed extension to HTML for adding
more flair to home pages. This will cause a sound file to be played
in the background while the user is looking at the home page.
This tag can have the following attributes:
- LOOP-This indicates how
many times the sound file should be played. This can either be
a numerical value or the word infinite.
If no value is specified, the sound file is played once.
- SRC-This attribute indicates
the URL for the sound file to be played. Available sound file
formats are .WAV, .AU, and .MID.
The following is an example of <BGSOUND>:
<BGSOUND SRC=http://www.mysite.com/intro.wav>
This is a proposed HTML 3 tag that instructs the browser to make
the enclosed text big. This can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <BIG>:
This word will come out <BIG>BIG</BIG>
This HTML tag will cause the enclosed text to blink. This tag
was introduced by Netscape as a proposed extension. Some people
find the <BLINK> tag to be quite annoying.
The following is an example of <BLINK>:
See what's <BLINK>NEW</BLINK> at this page!
When a browser comes across this HTML tag, it will show the text
as quoted text. This typically means that the text will be indented
on both the left and right. <BLOCKQUOTE> can have the following
attributes:
- ALIGN-This is a proposed
attribute to HTML for internationalization. It's used to indicate
the alignment of the text in the address. It can have the value
of center, justify,
left, or right.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <BLOCKQUOTE>:
<BLOCKQUOTE>To be or not to be, that is the question.</BLOCKQUOTE>
This HTML tag encloses the body of the Web page. Everything you
want users to see is enclosed within the <BODY> tag. This
element can have the following attributes:
- ALINK-This Netscape extension
indicates the color to be used when a link is clicked. This color
is represented by three pairs of hexadecimal numbers. The pairs
represent the red, green, and blue color values.
- BACKGROUND-This Netscape
extension provides for a background image. This extension has
also been proposed for HTML 3. The value you set for this must
be the URL for the graphic you want displayed in the background.
- BGCOLOR-This Netscape
extension indicates the color of the background for this page.
This color is represented by three pairs of hexadecimal numbers.
The pairs represent the red, green, and blue color values.
- BGPROPERTIES-This is
a Microsoft extension and can currently only be set to fixed.
It provides for a background watermark image.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- LINK-This Netscape extension
indicates the color to be used when there is a hypertext link
that hasn't been visited. This color is represented by three pairs
of hexadecimal numbers. The pairs represent the red, green, and
blue color values.
- TEXT-This Netscape extension
indicates the color to be used to display the text of your home
page. This color is represented by three pairs of hexadecimal
numbers. The pairs represent the red, green, and blue color values.
- VLINK-This Netscape extension
indicates the color to be used when a link has already been visited.
This color is represented by three pairs of hexadecimal numbers.
The pairs represent the red, green, and blue color values.
The following is an example of <BODY>:
<BODY BACKGROUND="http://www.mysite.com/backdrop.gif">[Web page]</
This is a proposed HTML 3 element that is intended to replace
the <BLOCKQUOTE> tag. <BQ> is different from <BLOCKQUOTE>
in that it does not imply word wrapping. This tag has the following
attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <BQ>:
<BQ>We hold these truths to be self-evident</BQ>
This HTML tag forces a new line to be created at that point. This
means that whether or not word wrap will take effect, the line
break will occur. This element has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
The following is an example of <BR>:
Even though this line may word wrap on your browser,
it'll still have a line break at the end.<BR>
This HTML 3 proposed tag was originally a Netscape proposed extension.
This element is used to attach a label to a table or a figure.
<CAPTION> has the following attributes:
- ALIGN-This attribute
will determine where the caption is placed. Acceptable values
are top, bottom,
left, and right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <CAPTION>:
<CAPTION>Table 1.1</CAPTION>
This Netscape-specific extension to HTML will center all enclosed
text. This has since been superseded by the HTML 3 proposals.
Now, all text elements have an ALIGN
attribute that can be set to center.
Example:
<CENTER>This text is centered on the browser.</CENTER>
The CITE element is used when you want to indicate a citation
of some sort. It has the following attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
Example:
<CITE>Hamlet, ACT V, Scene I</CITE>
The <CODE> element should be used when you want to indicate
source code. If you're giving people instructions on how to do
something with a computer, use this tag. You can use the following
attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <CODE>:
At the UNIX prompt, type in <CODE>ls -al</CODE>
There is a new proposed HTML 3 standard for table creation. One
of the new tags included in that proposal is the <COL> element.
You can use this element to define some standard behavior for
table columns. This tag has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text within the column. It can
have the value of char, center,
justify, left,
or right.
- CHAR-This is used to
indicate which character the column is to be aligned with. This
is only interpreted when the ALIGN
attribute has been set to char.
- CHAROFF-This number is
used to indicate the offset of the alignment character from the
table cell.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- SPAN-This number is used
to indicate how many table cells the cell value applies to. If
you set SPAN=0, it will apply
the current value to all cells. The default value is 1.
- VALIGN-This indicates
the vertical alignment of the text of the table cell. Acceptable
values for this attribute are baseline,
bottom, middle,
and top.
- WIDTH-This value indicates
the width of each column. You can also specify the unit of measurement
for the width. The standard units are pt
(point size), pi (picas),
in (inches), cm
(centimeters), mm (millimeters),
em (em units), and px
(screen pixels). Instead of a unit, you can put an asterisk (*)
to specify a relative width.
The following is an example of <COL>:
<COL ALIGN=char CHAR="." WIDTH="100mm">
The <COLGROUP> element is a container for a group of columns.
It also enables you to set the defaults for all of these columns.
This element has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text within the column. It can
have the value of char, center,
justify, left,
or right.
- CHAR-This is used to
indicate which character the column is to be aligned with. This
is only interpreted when the ALIGN
attribute has been set to char.
- CHAROFF-This number is
used to indicate the offset of the alignment character from the
table cell.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- VALIGN-This indicates
the vertical alignment of the text of the table cell. Acceptable
values for this attribute are baseline,
bottom, middle,
and top.
- WIDTH-This indicates
the default width of grouped columns. You can specify relative
size by appending an asterisk (*) at the end.
The following is an example of <COLGROUP>:
<COLGROUP ALIGN=char CHAR=".">10.0</COLGROUP>
This HTML 3 proposed tag should be used to name the source of
information. The following attributes are available:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <CREDIT>:
<CREDIT>By William Shakespeare</CREDIT>
If you choose to make use of a definition list in your home page,
you'll need <DD>. This HTML tag is used to indicate a definition
for the definition list. A <DD> tag should always be preceded
by a <DT> tag. The <DD> element has the following
attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DD>:
<DD>Sample Definition</DD>
This HTML 3 tag is meant to supersede the <S> or <STRIKE>
elements. Text enclosed within a <DEL> tag will be shown
as strikethrough. You have the following attributes available:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DEL>:
This is a <DEL>mistake<DEL>.
This HTML 3 tag will have the browser display the enclosed text
as a description. If the current Web page makes use of a lot of
definitions, you should use this tag. This element has the following
attribute:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DFN>:
<DFN>HTML-HyperText Markup Language</DFN>
The <DIR> element is used when you want to create an unordered
list of single-line elements. Each line in the <DIR> list
is defined by the <LI> tag. You can apply the following
attributes to the <DIR> tag:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- COMPACT-This attribute
tells the browser to display the list in a compact manner. It
is not, however, supported by many browsers.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DIR>:
<DIR ALIGN=center><LI>MYFILE.EXE</LI><LI>MYFILE.TXT</LI></DIR>
This proposed HTML 3 tag is intended to be used to replace the
Netscape-specific <CENTER> tag. It has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DIV>:
<DIV ALIGN=center>This line is centered.</DIV>
If you're going to use a lot of definitions or have a page of
definitions, you need this tag. Each entry in the definition list
is made up of <DT> and <DD> tags. You can use the
following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- COMPACT-This attribute
tells the browser to display the list in a compact manner. It
is not, however, supported by many browsers.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DL>:
<DL><DT>Internet</DT><DD>A distributed collection of computers spread worldwide.</DD></DL>
This is one of the three HTML elements you need to use when creating
a definition list. You create headings for your definitions with
the <DT> tag. This HTML element comes with the following
attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <DT>:
<DT>Definiton Heading</DT>
There are a number of ways of making text stand out. Place this
HTML tag around the text that you want to emphasize. It has the
following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <EM>:
I repeat, you're <EM>WRONG</EM>!
Netscape Navigator 2.0 provides for the capability to insert arbitrary
objects. This is done with the newly created Netscape-specific
tag, <EMBED>. You have a number of attributes you can use:
- Attributes-The <EMBED>
element enables arbitrary and undefined attributes. These attributes
are supposed to be application-specific, which makes documentation
difficult.
- HEIGHT-This indicates
the initial height of the display for the embedded object. The
value must be specified as a number of pixels.
- SRC-This points to an
URL for the object you want to embed.
- WIDTH-This indicates
the initial width of the display for the embedded object. The
value must be specified as a number of pixels.
The following is an example of <EMBED>:
<EMBED SRC="mymovie.dcr">
A new element in the HTML 3 proposal is the <FIG> tag, an
improved <IMG> tag. You can include text elements as well
as specify hotspots with other tags. You can also use the <OVERLAY>
element to put overlays on top of figures. <FIG> has the
following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of bleedleft, bleedright,
center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- HEIGHT-This indicates
the initial height of the display for the embedded object. The
value must be specified as a number of pixels.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- SRC-This points to an
URL for the image you want to use.
- UNITS-This attribute
enables the HEIGHT and WIDTH
attributes to use units other than screen pixels.
- WIDTH-This indicates
the initial width of the display for the embedded object. The
value must be specified as a number of pixels.
The following is an example of <FIG>:
<FIG SRC="http://www.mysite.com/mygraphic.gif"></FIG>
A new proposed HTML 3 tag is the footnote element. Currently,
very few browsers support this tag. You have the following attributes
available:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <FN>:
<FN>This is a footnote.</FN>
The <FONT> element, first introduced by Netscape, enables
various font manipulations. It has not been adopted as part of
the new HTML 3 proposal. <FONT> has the following attributes:
- COLOR-This attribute
enables the font to be drawn in a particular color. This color
is represented by three pairs of hexadecimal numbers. The pairs
represent the red, green, and blue color values.
- FACE-This attribute was
introduced by Microsoft as a means of specifying a font style.
There are currently no defined values.
- SIZE-This attribute indicates
how much to increase or decrease the <BASEFONT> size. An
acceptable value is anything between -7 and +7. You can also specify
an absolute font size, with acceptables values between 1-7.
The following is an example of <FONT>:
<FONT SIZE=+2>
The fill-out form is one of the best ways to get user input. The
biggest drawback to using <FORM> is that you must have a
CGI script to retrieve the information. Here is a list of attributes
for this tag:
- ACCEPT-CHARSET-This attribute
was introduced in the HTML internationalization attempt. This
indicates the character sets that the receiving URL can handle.
- ACTION-This indicates
the URL to send the information to.
- ENCTYPE-This attribute
specifies the behavior of the form. Currently, there are only
two defined: application/x-www-form-urlencoded
and multipart/form-data.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- METHOD-This attribute
describes what should be done with the form. There are currently
only two acceptable values: GET,
which sends the information to the URL specified by ACTION;
and POST, which enables you
to do an HTTP upload.
- SCRIPT-This is an HTML
3 proposed attribute. The file specified by SCRIPT
is sent to the browser's computer for execution. This program
is intended to do some data manipulation before sending it to
the URL in ACTION.
The following is an example of <FORM>:
<FORM ACTION="http://www.mysite.com/cgi-big/get.cgi" METHOD="GET"></FORM>
This is a new Netscape-specific HTML extension, which provides
better handling of the browser's window. Netscape enables URLs
to update certain frames or for some frames to remain on the browser.
The <FRAME> tag has a number of attributes:
- MARGINHEIGHT-This indicates
the height of the frame, specified in pixels.
- MARGINWIDTH-This indicates
the width of the frame, specified in pixels.
- NAME-This attribute assigns
a name to the frame to be used as a target for hypertext link
updates. There are four reserved names: _blank,
_self, _parent,
and _top. These values must
begin with the underbar character and each have different meanings.
The _blank name indicates
a new, unnamed window. The _self
name indicates the same window as the calling URL. The _parent
name indicates that the destination is the parent frame of the
destination URL. Finally, the _top
indicates that the top window should be used.
- NORESIZE-When this attribute
is used, the user cannot resize the frame.
- SCROLLING-This attribute
is used to determine if there is a scroll bar. You can use either
YES, NO,
or AUTO. By default, AUTO
is used.
- SRC-This indicates the
URL for the HTML document to be shown in the frame.
The following is an example of <FRAME>:
<FRAME SRC="http://www.mysite.com/myframe.html" SCROLLING="YES"
The <FRAMESET> tag is another proposed extension from Netscape
to be used instead of the <BODY> element. This tag is used
only to set up other frames that will be the actual page. You
must use the <FRAME> element if you use this tag. You have
a number of attributes available:
- COLS-This list of widths
of the frame is separated by commas. By default, you specify the
frame widths in pixels. Alternatively, you can add the percent
sign (%) after a number to make the frame width a percentage of
the browser's width.
- ROWS-This attribute is
similar to the COLS attribute,
except that it applies to the frames' heights. These values for
each consecutive frame are separated by commas. By default, the
height specifications are expressed in screen pixels. Alternatively,
you can add the percent sign (%) after a number to make the frame
height a percentage of the browser's height.
The following is an example of <FRAMESET>:
<FRAMESET COLS="50%,50%" ROWS="600, 400"></FRAMESET>
This HTML tag displays text as the most prominent header. It has
the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H1>:
<H1>This is the largest heading.</H1>
This HTML tag displays text as the second most prominent header.
It has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H2>:
<H2>This is the second largest heading.</H2>
This HTML tag displays text as the third most prominent header.
It has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H3>:
<H3>This is the third largest heading.</H3>
This HTML tag displays text as the fourth most prominent header.
It has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H4>:
<H4>This is the fourth largest heading.</H4>
This HTML tag displays text as the fifth most prominent header.
It has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, left,
right, or justify.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H5>:
<H5>This is the fifth largest heading.</H5>
This HTML tag displays text as the least prominent header. It
has the following attributes:
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of center, left,
right, or justify.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used to specify a message digest or checksum. This is used
when you want to be sure that a linked object is the one the Web
author specified.
- NOWRAP-When used, this
attribute will prevent the browser from word wrapping the heading.
The following is an example of <H6>:
<H6>This is the smallest heading.</H6>
This element is intended to hold information about the HTML document.
Although you can put other HTML elements within the <HEAD>,
none of them will be displayed in the browser's window. This tag
has the following attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <HEAD>:
<HEAD><TITLE>This Is My Home Page</TITLE></HEAD>
When used, the <HR> tag creates a horizontal line. It has
the following attributes:
- ALIGN-This proposed extended
attribute indicates the positioning of the rule. It can have the
value of left, right,
center, or justify.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- SRC-This proposed HTML
3 attribute is intended to specify a custom image. Traditionally,
the horizontal rule was a browser-specific graphic. This attribute
enables the Web author to determine the image.
- SIZE-This Netscape extension
to HTML specifies the thickness of the horizontal line in pixels.
- WIDTH-By default, the
horizontal rule is drawn as wide as the page. This Netscape extension
attribute enables the Web author to define the horizontal length
of the rule in pixels. Alternatively, if you add the percent sign
(%) after a number, the horizontal rule will be a percent of the
width of the document.
- NOSHADE-For those times
when you want a solid horizontal line, use NOSHADE.
This will prevent the browser from doing any shading of the horizontal
line.
The following is an example of <HR>:
<HR SIZE=5 NOSHADE>
This is the main container for a home page. All other HTML tags
contained within this element are shown in the browser window.
This tag has the following attributes:
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <HTML>:
<HTML>[Your home page]</HTML>
This tag will italicize the text that is enclosed within it. The
<I> tag can have the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <I>:
This word is in <I>italics</I>.
Currently, any time you want to make use of graphics on your home
page, you have to employ the <IMG> tag. This element enables
you to specify imagemap information, hypertext link information,
and positioning information. It has the following attributes
- ALIGN-This attribute
indicates the alignment of the text on the line. It can have the
value of absbottom, absmiddle,
baseline, bottom,
left, middle,
right, texttop,
or top.
- ALT-This attribute contains
a text string that will be displayed by people who aren't using
graphical browsers.
- BORDER-This attribute
indicates the thickness of the border around the image. The unit
of measurement for the thickness is determined by the UNITS attribute.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CONTROLS-This is a Microsoft
proposed attribute extension. If a video file is specified by
the SRC attribute, a set
of controls is displayed under the video clip.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- DYNSRC-This is a Microsoft
proposed attribute extension that points to an URL. The URL is
a video clip or VRML world to be displayed.
- HEIGHT-This indicates
the initial height of the display for the embedded object. The
value must be specified as a number of pixels.
- HSPACE-This Netscape
proposed extension controls the amount of horizontal space around
the image. The value specified is expressed as a number of pixels.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- ISMAP-When using imagemaps,
you must use this attribute. This indicates that the graphic specified
in the SRC attribute, is an imagemap.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- LOOP-This is a Microsoft
proposed attribute extension. The value indicates how many times
the video clip is played. If you put in the string INFINITE
or use the value of -1, the
video clip will play continually.
- LOOPDELAY-This is a Microsoft
proposed attribute extension. The value specified with this attribute,
indicates the number of seconds to wait before a video clip is
replayed.
- LOWSRC-This a Netscape
1.1 extension. The file specified with this attribute will be
loaded before the file indicated in the SRC attribute. This is
intended for Web authors to use low resolution image, which has
all the important information of the higher resolution image.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- SRC-This indicates the
URL for the HTML document to be displayed.
- START-This is a Microsoft
proposed attribute extension for video clips. This attribute indicates
when the video file will start playing. Supported values for this
attribute are FILEOPEN and
MOUSEOVER. The FILEOPEN
value indicates that as soon as the browser loads in the file,
it will play it. The MOUSEOVER
value indicates that the video clip will play when the user moves
the mouse over the clip.
- UNITS-This attribute
enables the HEIGHT and WIDTH
attributes to use units other than screen pixels.
- USEMAP-This is a Netscape
proposed attribute extension for implementing client-side imagemaps.
This attribute should point to an URL with a #NAME
suffix. The MAP element is
used in conjunction with this attribute.
- VSPACE-This Netscape
proposed extension controls the amount of vertical space around
the image. The value specified is expressed as a number of pixels.
- WIDTH-This indicates
the initial width of the display for the embedded object. The
value must be specified as a number of pixels.
The following is an example of <IMG>:
<IMG SRC="mymap.gif" WIDTH=5 HEIGHT=5 BORDER=2 ISMAP>
This HTML 3 proposed element works with the FORM
element. The <INPUT> tag enables the user to upload a file
through the Web server. It has the following attributes:
- ACCEPT-This attribute
indicates a list of media types that the server will accept.
- ALIGN-This attribute
indicates the alignment of the <INPUT> form. Acceptable
values for this attribute are bottom,
left, middle,
right, and top.
- CHECKED-This indicates
that the specific form will be a check box. If this is not specified,
it will default to a radio button.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- DISABLED-This proposed
HTML 3 attribute will display the form, but prevent the user from
modifying it.
- ERROR-This proposed HTML
3 attribute is used when an incorrect value is entered. The text
specified in this attribute is displayed on invalid input.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MAX-This value is only
used when the TYPE attribute
is set to RANGE. This indicates
the acceptable maximum numeric value.
- MAXLENGTH-This proposed
HTML 3 attribute specifies the maximum number of characters acceptable
for input.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- MIN-This value is only
used when the TYPE attribute
is set to RANGE. This indicates
the acceptable minimum numeric value.
- NAME-The string in this
attribute is the name for the input form.
- SIZE-This attribute specifies
the physical size of the input form. This value is specified in
number of characters.
- SRC-When the TYPE
attribute is set to IMAGE,
this points to an URL. When the user clicks the image and the
form is submitted, the mouse coordinates are sent over as well.
This is similar to having a form-based imagemap.
- TYPE-This attribute indicates
the behavior of the INPUT form. Acceptable values are CHECKBOX,
FILE, HIDDEN,
IMAGE, JOT,
PASSWORD, RADIO,
RANGE, RESET,
SCRIBBLE, SUBMIT,
or TEXT.
- VALUE-This attribute
changes based on the TYPE
attribute. Generally speaking, the VALUE
attribute will contain the value returned by the user.
The following is an example of <INPUT>:
<INPUT TYPE="SUBMIT" NAME="submit1" ALIGN="left">
This proposed HTML 3 element will display the enclosed text as
inserted text. The text embedded by the starting and ending markers
of this element, will be shown in a strikethrough font. This tag
is mainly intended for legal documents and has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <INS>:
This is <INS>inserted text.</INS>
This HTML element is used before the <FORM> tag to indicate
a searchable index. When this tag is put in the HEAD
section of the HTML document, the entire document can be examined
using a keyword search. <ISINDEX> has the following attributes:
- ACTION-When <ISINDEX>
is used in the <BODY> portion of the Web document, this
points to a CGI script. The script is the program on the server
that can handle the search.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- PROMPT-This is a proposed
HTML 3 attribute that enables the Web author to specify a prompt.
The string assigned to this attribute will be displayed as the
prompt, for the searchable index.
The following is an example of <ISINDEX>:
<ISINDEX>
This HTML element will cause the enclosed text to be displayed
as keyboard input. This is typically done when you want to give
users instructions on what to type into the computer. This tag
has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures and hyphenation
rules.
The following is an example of <KBD>:
Type in <KBD>ls</KBD> at the UNIX command prompt.
This is a proposed HTML 3 attribute that changes the LANG
context. The text enclosed within this tag will have its LANG
context changed, as well as all subsequent LANGs.
This tag has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
The following is an example of <LANG>:
The LANG context will <LANG>change.</LANG>
This proposed HTML 3 element enables you to define the header
for a list. This tag has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <LH>:
<LH>A Heading</LH>
This attribute takes the enclosed text and makes it part of the
list. This element has the following attributes:
- ALIGN-This attribute
specifies the alignment of the list item. You can set it to the
value of center, justify,
left, or right.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- TYPE-This Netscape extension
enables you to specify the prefix for this particular item. If
you're using a <UL> list type, TYPE
can be circle, disc,
or square. If the list is
an <OL> list type, TYPE
can be A, a,
I, i,
or 1.
- VALUE-This Netscape extension
works with the TYPE attribute.
When you specify an <OL> list type, this attribute indicates
the starting number of the list. By default, this value is 1.
The following is an example of <LI>:
<LI>A list item</LI>
This HTML tag is used to specify a relationship between the current
Web page and other HTML documents. This element is used along
with the Anchor attribute REL.
This element has the following attributes:
- CHARSET-This is a proposed
attribute to HTML for internationalization. It's used to indicate
what type of character set is used by the hypertext link.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- HREF-This indicates the
destination URL you want to establish the relationship with.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- METHODS-This indicates
a list of HTTP METHODS supported
by the object. Currently, the only acceptable values are GET and
TEXTSEARCH. This is a little used and little supported attribute.
- REL-When used with the
HREF attribute, this indicates
a particular relationship with the destination. This is a little
used and little supported attribute, and will probably be superseded
in the future.
- REV-When used with the
HREF attribute, this is the
inverse of the REL attribute.
This establishes a backwards relationship between the current
Web page and the URL that brought up this HTML document. This
is a little used and little supported attribute and will probably
be superseded in the future.
- TITLE-When used with
HREF, this attribute indicates
the title of the destination URL. This is a little used and little
supported attribute.
- URN-The Universal Resource
Number was originally intended as a better method of referring
to destination links, than URLs. It is currently not used or supported.
The following is an example of <LINK>:
<LINK HREF="http://www.mysite.com/destination1.html">
This Netscape proposed HTML element describes imagemap regions.
The one attribute allowed is NAME,
which points to a file with the imagemap regions defined.
The following is an example of <MAP>:
<MAP NAME="myregions.map"></MAP>
This HTML element proposed by Microsoft will create an area with
scrolling text inside of it. The text to be scrolled is contained
within the start and end markers of this element. This tag has
the following attributes:
- ALIGN-This attribute
specifies how the text will be displayed in the marquee. You can
set it to the value of bottom,
middle, or top.
- BEHAVIOR-This attribute
determines whether the text will scroll completely off the marquee.
You can set this attribute to alternate,
scroll, or slide.
The alternate value will
cause the text to move back and forth from side to side. The text
will scroll completely off the marquee when the value is scroll.
The text in the marquee will enter the marquee and stay there
with the slide value. The
default is scroll.
- BGCOLOR-The background
color of the marquee can be specified with this attribute. The
color is represented by three pairs of hexadecimal numbers. The
pairs represent the red, green, and blue color values.
- DIRECTION-This attribute
indicates how the text will scroll in the marquee. You can either
set this to left or right.
- HEIGHT-The height of
the marquee is controlled with this attribute. You can specify
the size in either pixels or as a percentage of the window height.
If you're specifying a percentage of the window, you'll need to
add a percent sign (%) after the number.
- HSPACE-This attribute
defines how many pixels separate the marquee from surrounding
text. This controls the amount of pixels to use as a buffer horizontally.
- LOOP-This number specifies
how many times the marquee text will loop. A value of -1
or the string INFINITE will
cause the text to loop forever.
- SCROLLAMOUNT-This number
determines the number of pixels to scroll the marquee text.
- SCROLLDELAY-You can specify
the number of milliseconds between marquee updates with this value.
- VSPACE-This attribute
defines how many pixels separate the marquee from the surrounding
text. This controls the number of pixels to use as a buffer vertically.
The following is an example of <MARQUEE>:
<MARQUEE BEHAVIOR="scroll" DIRECTION="left">This is a marquee.</MARQUEE>
This HTML element will display any <LI> enclosed within
it in a menu list. HTML 3 proposed to remove this element. This
tag has the following attributes:
- ALIGN-This attribute
specifies the alignment of the list item. You can set it to be
the value of center, justify,
left, or right.
- COMPACT-This attribute
causes the menu list to be displayed in a physically compact form.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
The following is an example of <MENU>:
<MENU><LI>Milk $1.00</LI><LI>Eggs $2.00</LI></MENU>
This HTML tag is intended to specify document information not
available with other HTML elements. The information contained
in this element may be extracted by the server or the browser.
This tag has the following attributes:
- CONTENT-This attribute
specifies the meta-information to be associated with the value
in the NAME attribute. You
can also use this attribute to indicate the information to be
associated with an HTTP response header. If the HTTP-EQUIV
attribute is set to the Netscape-specific REFRESH,
Then CONTENT will indicate
the number of seconds to update the current Web page.
- HTTP-EQUIV-You specify
which attribute to associate the <META> element with. Netscape
introduced the value of REFRESH
to enable home pages to be updated.
- NAME-If the HTTP-EQUIV
attribute is not defined, this attribute is used to identify the
information.
- URL-This Netscape attribute
extension is used to indicate which home page is to be updated.
After the number of seconds specified in CONTENT,
this URL will be reloaded.
The following is an example of <META>:
<META URL="http://www.mysite.com/anim.html" CONTENT=5 HTTP-
This element is used to control line breaks on certain lines.
The text enclosed within the beginning and ending markers will
not word wrap based on the width of the browser.
The following is an example of <NOBR>:
<NOBR>This line of text will always be one line,
regardless of how wide the browser window.</NOBR>
This Netscape HTML extension element is intended to be used for
browsers that understand, but don't implement, the <EMBED>/<NOEMBED>
tags. If one of these browsers comes across the <NOEMBED>
element, the enclosed text will be displayed. This is basically
equivalent to the ALT attribute
for the <IMG> element.
The following is an example of <NOEMBED>:
<NOEMBED>You'll only see this if your browser doesn't support the EMBED tag.</NOEMBED>
This Netscape HTML extension element is intended to be used for
browsers that understand, but don't implement, the <FRAMESET>/<NOFRAMES>
tags. If one of these browsers comes across the <NOFRAMES>
element, the enclosed text will be displayed. This is basically
equivalent to the ALT attribute
for the <IMG> element.
The following is an example of <NOFRAMES>:
<NOFRAMES>You'll only see this if your browser doesn't support the FRAMESET tag.</NOFRAMES>
This proposed HTML 3 element will cause the enclosed text to be
displayed as a note. The <NOTE> tag has the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- SRC-This points to an
URL for an image to be displayed before the <NOTE>.
The following is an example of <NOTE>:
<NOTE>This is a note.</NOTE>
This HTML element will display any enclosed <LI> elements
as an ordered list. The order is listed numerically. It has the
following attributes:
- ALIGN-This attribute
specifies the alignment of the list item. You can set it to be
the value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. In the
ordered list, this indicates what type of numerical sequence to
use.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- COMPACT-This attribute
causes the menu list to be displayed in a physically compact form.
- CONTINUE-This proposed
HTML 3 attribute will continue the numbering sequence. If you've
already started another <OL> list, the numbering will continue
with this attribute.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- SEQNUM-This proposed
HTML 3 attribute will define the starting number for the ordered
list.
- START-This Netscape extension
is the equivalent of the SEQNUM
attribute.
- TYPE-This Netscape extension
is used to indicate the numbering option. You can set this attribute
to A, a,
I, i,
or 1.
The following is an example of <OL>:
<OL ALIGN=LEFT SEQNUM=5>This is an item in an ordered lists.</OL>
This HTML element identifies a particular selection in the SELECT
element. You can set the following attributes:
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- DISABLED-When this attribute
is used, the form is displayed, but the user can't select it.
- ERROR-This proposed HTML
3 attribute takes on a string of characters as a value. This string
is displayed if the user enters an invalid value.
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- SHAPE-This proposed HTML
3 attribute defines the shape of the form.
- SELECTED-This attribute
determines the default option.
- VALUE-This attribute,
when defined, holds the value to be returned.
The following is an example of <OPTION>:
<OPTION VALUE="line1"></OPTION>
This proposed HTML 3 tag is intended to be used along with the
<FIG> element. The <OVERLAY> tag enables you to overlay
an image on top of a <FIG> image. It has the following attributes:
- HEIGHT-This indicates
the initial height of the display for the overlaid image. The
value must be specified as a number of pixels.
- IMAGEMAP-When using imagemaps,
you must use this attribute. This indicates that the overlay is
to be treated as imagemap.
- MD-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This attribute
is used in conjunction with the SRC attribute, to specify a message
digest or checksum. This is used when you want to be sure that
a linked object is the one the Web author specified.
- SRC-This points to the
image to be overlaid on top of a <FIG>.
- UNITS-This attribute
enables the HEIGHT and WIDTH
attributes to use units other than screen pixels.
- WIDTH-This indicates
the initial width of the display for the overlaid image. The value
must be specified as a number of pixels.
- X-This value indicates
the number of units horizontally offset from the upper-left corner
of the <FIG> graphic. The units used is determined by the
UNITS attribute. If UNITS isn't specified, then the default value
for the X attribute is pixels.
- Y-This value indicates
the number of units horizontally offset from the upper-left corner
of the <FIG> graphic. The units used is determined by the
UNITS attribute. If UNITS isn't specified, then the default value
for the Y attribute is pixels.
The following is an example of <OVERLAY>:
<OVERLAY SRC="overlay.gif" HEIGHT=200 WIDTH=150 X=50 Y=50>
This HTML tag will prevent the enclosed text from being word wrapped.
The browser will not attempt to word wrap the text contained in
this element. You can set the following attributes:
- ALIGN-This attribute
specifies the alignment of the list item. You can set it to the
value of center, justify,
left, or right.
- CLASS-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This is
a list of calls and subclasses separated by spaces. Acceptable
values that you can use have not been defined by HTML 3.
- CLEAR-This is a proposed
attribute to HTML 3. It can have the value of left,
right, or all.
These values indicate which margin is to be clear of images so
that text can appear on it.
- DIR-This is a proposed
attribute to HTML for internationalization. It's used to indicate
which direction to display the text. It can either have the value
ltr (left to right) or rtl
(right to left).
- ID-This is a proposed
attribute to HTML 3 as part of a style sheet proposal. This defines
the current line as a destination point. These points are used
for internal jumps or jumps to a specific line.
- LANG-This is a proposed
attribute to HTML for internationalization. This attribute is
composed from the two-letter language code from ISO 639. You can
optionally add a period, followed by a two-letter country code
from ISO 3166. This attribute can be used by parsers to select
language-specific choices for quotation marks, ligatures, and
hyphenation rules.
- NOWRAP-This proposed
HTML 3 attribute replaces the NOWRAP
attribute. Acceptable values for this attribute are on
or off.
- WRAP-This proposed HTML+
attribute will enable or disable word wrap. If this attribute
is present, the browser will word wrap the enclosed text.
The following is an example of <P>:
<P>This line of text will always be this long, regardless of the size of the browser.</P>
This HTML element is proposed to support