A colour is a either a colour name or a numerical RGB specification. The Style Sheet specification (and style sheets as implemented by Microsoft in the Internet Explorer) supports all of the Netscape colour names.
The following all specify a red colour
EM { color: #F00 } | #RGB |
EM { color: #FF0000 } | #RRGGBB |
EM { color: rgb(255,0,0) | integer range 0 - 255 |
EM { color: rgb(100%, 0%, 0%) | float range 0.0% - 100.0% |
Note that a three-digit RGB notation (#RGB) is converted into six-digit form (#RRGGBB) by replicating digits, not by adding zeros. For example, #fb0 expands to #ffbb00.
Values outside the numerical ranges will be rounded off. The three rules below are therefore equivalent:
EM { color: rgb(255,0,0) | integer range 0 - 255 |
EM { color: rgb(300,0,0) | rounded off to 255 |
EM { color: rgb(110%, 0%, 0%) | rounded off to 100% |
© 1995-1998, Stephen Le Hunte
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