Proprietary Elements

Proprietary Elements *

Explanation

Proprietary elements do not work across browsers.

They belong to a single browser manufacturer.

Here are some examples.

Lists

Microsoft Internet Explorer
<basefont> color=color face=font face	Sets the color and/or font of the entire document when placed in the <head> or for subsequent text when placed in the flow of the body text
<bgsound>	Inserts an audio file that plays in the background
<body> bgproperties=value	Determines whether background image scrolls with the background
<body> leftmargin=n rightmargin=n	Sets the margin between the browser window and the contents of the page
<caption> valign=position	Sets vertical alignment of table caption
<comment>	Inserts a comment in the HTML source that does not display in the browser (same as <! -- and -- >)
<form> target=name	Specifies a target window or frame for the output of a form
<frameset> framespacing=n	Sets the amount of space between frames
<img> dynsrc=url controls loop=n start=action	Uses the image tag to place video or audio clips
<marquee>	Places scrolling marquee text on the page
<table> bordercolor=color bordercolordark=color bordercolorlight=color	Sets colors for 3-D table borders in the <table>, <td>, <th>, and <tr> tags
<table> frame=value	Controls the display of the outer borders of a table in the <table> tag

Microsoft Internet Explorer

HTML tag or attribute

Description

color=color
face=font face

Sets the color and/or font of the entire document when placed in the <head> or for subsequent text when placed in the flow of the body text

Inserts an audio file that plays in the background

<body>

bgproperties=value

Determines whether background image scrolls with the background

<body>

leftmargin=n
rightmargin=n

Sets the margin between the browser window and the contents of the page

valign=position

Sets vertical alignment of table caption

Inserts a comment in the HTML source that does not display in the browser (same as <! -- and -- >)

<form>

target=name

Specifies a target window or frame for the output of a form

framespacing=n

Sets the amount of space between frames

<img>

dynsrc=url
controls
loop=n
start=action

Uses the image tag to place video or audio clips

Places scrolling marquee text on the page

<table>

bordercolor=color
bordercolordark=color
bordercolorlight=color

Sets colors for 3-D table borders in the <table>, <td>, <th>, and <tr> tags

<table>

frame=value

Controls the display of the outer borders of a table in the <table> tag

Netscape Navigator
<blink>	Causes text to blink on and off
<ilayer>	Inline layer; allows you to offset content from its natural position on the page
<keygen>	Facilitates generation of key material and submission of the public key as part of an HTML form (for privacy and encryption)
<layer>	Creates layers so that elements can be placed on top of each other (useful with DHTML)
<multicol>	Produces a multicolumn format
<nolayer>	Alternative text for browsers that do not support <layer> and <ilayer>
<server>	Specifies a server-side JavaScript application
<spacer>	Holds a specified amount of empty space (used for alignment of elements on the page and to hold table cells open to specific widths)

Netscape Navigator

This one is included here as another example.
It has been superseded by the standards-complaint Mozilla or Gecko browsers.

HTML tag or attribute

Description

<blink>

Causes text to blink on and off

Inline layer; allows you to offset content from its natural position on the page

Facilitates generation of key material and submission of the public key as part of an HTML form (for privacy and encryption)

<layer>

Creates layers so that elements can be placed on top of each other (useful with DHTML)

Produces a multicolumn format

Alternative text for browsers that do not support <layer> and <ilayer>

Specifies a server-side JavaScript application

Holds a specified amount of empty space (used for alignment of elements on the page and to hold table cells open to specific widths)

* Credit

Adapted from Niederst, Jennifer, Appendix C, Web Design in a Nutshell, 2nd Edition (O'Reilly, 2001), available at http://www.oreilly.com/catalog/wdnut2/.

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