- From: Luis Ferro <luis.ferro@mail.kpnqwest.pt>
- Date: Tue, 22 Aug 2000 12:14:38 +0100
- To: www-style <www-style@w3.org>
Hi there, Macro Definitions They work as containers for property values and/or properties and values but the two can't be mixed in the same token. They allow a central reference system for deep inside properties inside a CSS. Usability Allows seamingless integration with real-world software by providing ways to centrally store the definitions, allowing for a "paletized" way to handle all properties and allowing the existence of "snippets" of CSS as groups of properties (that can be or not be cascaded, depending of the implementation). Examples %MyTextFont { value: "Trebuchet MS", Tahoma, Verdana, Arial, Geneva, Helvetica, sans-serif; } %standard_font_for_text { font-family : %MyTextFont; letter-spacing : 1pt; color : #000080; } %standard_font_for_others { font-family : times new roman; letter-spacing : 1pt; color : #000080; } body { %standard_font_for_text; } h1, h2 { background-color: red; } h3 { background-color: blue; } th { %standard_font_for_others } .MyClass { %standard_font_for_text; } .MyOtherClass { %standard_font_for_others } And so one... in this way, styles that don't inherit the definitions by way of css (and that happens a lot - both by need or to circunvent bugs in implementations) could still be linked by way of macro definitions. The definitions would become also much less verbose and would always be possible to "compress/decompress" a css definition with them, turning the css much smaller. Of course one could say that if one uses CSS smartly with regard with the cascading properties one archieves the same, but the problem with it is that level of "guru" level isn't for the real people who have to use CSS to format a document and has to do it NOW. Also this in part replaces my proposal of paletization of colors inside documents because one can archive the same purpose with this (apart from archive the same with any properties not only colors). Still the definition of opposit colors and inverse colors isn't overriden. Cheers, Luis Ferro WebDev
Received on Tuesday, 22 August 2000 07:14:52 UTC