Book HomeCascading Style Sheets: The Definitive GuideSearch this book Sunday 25th of February 2018 10:17:23 PM

A.3. Online Communities

One can read only so much before it comes time to join a discussion and ask some questions. There are two major venues for discussions about CSS, but each is concerned with a specific type of discussion -- so make sure you go to the right place.

A.3.1. comp.infosystems.www.authoring.stylesheets

This Usenet group, often abbreviated as ciwas (pronounced "see-wass"), is the gathering place for CSS authors. A number of experts in the field check this newsgroup regularly, this author among them, and all are there for one primary reason: to help new CSS authors over the hurdles that learning any new language will generate. The secondary reason is for the spirited debates that occasionally erupt over some aspect of CSS, or a browser's implementation thereof. Rather unusually for a newsgroup, the signal-to-noise ratio stayed fairly high for the last few years of the 1990s, and will with any luck continue in that vein.

A.3.2. www-style@w3.org

Anyone who wishes to be involved in discussing the future course of CSS, and to clearing up ambiguities in the specifications, should subscribe to this list. The members of the list are all, in one fashion or another, interested in making CSS better than it is already. Please note: www-style is not the place to ask for assistance with writing CSS. For help with CSS authoring problems, visit ciwas instead. Questions beginning with "How do I ... ?" are frowned upon by the regulars of www-style and are usually redirected to a more appropriate forum such as ciwas. On the other hand, questions that begin "Why can't I ... ?" or "Wouldn't it be cool if ... ?" are generally welcome, so long as they relate to some ability that appears to be missing from CSS.

Messages to www-style are only accepted if the sender is already subscribed to the list. In order to subscribe, send email to with the word subscribe in the subject of the message; to unsubscribe, send email to with the word unsubscribe in the subject of the message.



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opening STYLE tag, and the end of the comment appears right before the closing STYLE tag:

<STYLE type="text/css"><!--
@import url(sheet2.css);
H1 {color: maroon;}
BODY {background: yellow;}
--></STYLE>

This should cause older browsers to completely ignore not only the STYLE tags but the declarations as well, because rgb(64,96,153), however, because only integers(whole numbers) are permitted when using numbers. Percentages canhave decimals, but these numbers can't.

Of course, if you already know the percentages, there isn'tmuch point in converting them into straight numbers. This notation ismore useful for people who use programs such as Photoshop, whichproduce such color values, or for those who are familiar enough withthe technical details of color generation to already think in termsof 0-255 values.