This is an example of the column headings and support information
for the HTML Support History grid. For each HTML element or attribute
listed, the table indicates if it is supported by any of the
listed HTML standards (2.0, 3.0, 3.2 or 4.0) or reviewed browsers
(Internet Explorer, Mosaic, Netscape or Opera.)
A version number is given such as "3.0A1" (representing
Version 3.0, Alpha 1.)
Non-Support:
Represented for both HTML Specifications and browsers by
a "--" symbol.
Formatting Schemes
Color coded differentiation is provided for readers
with CSS-capable browsers. This makes the information much more
visually obvious to a reader than plain font styles, but it should
not be necessary in order to read the information properly. The
colors are customizable.
First Support:Style: Italics. Default CSS: BG - Green, FG - Red
The element or attribute was first specified
or implemented by this standard or browser. For any given
element/attribute a single browser and a single HTML
standard can claim first support.
Support:Style: Bold.
Default CSS: BG - Green, FG - White
The element or attribute is supported by this standard or
browser, but was not the first among those reviewed to do so.