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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.

which other elements cannot also exist and in which the parentelement's background is visible. For example, look at
Figure 7-5, which shows the difference between twoparagraphs without any margins, and the same two paragraphs with somemargins.

Figure 7-5

Figure 7-5. Paragraphs with, and without, margins

The simplest way to set a margin is by using the propertymargin.

Suppose we

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user agent to auto:

P {margin-left: 100px; margin-right: 100px; width: 100px;}

It will then evaluate to 200px , as shown in Figure 8-12.

Figure 8-12

Figure 8-12. Overriding the margin-right setting

TIP

Note that margin-right is forced to beauto only for left-to-right languages such asEnglish. In right-to-left languages, everything gets flipped around, external style sheets using the @import directive.

1.4.3. The @import Directive

Now for the stuff that is found inside the STYLEtag. First, we have something very similar toLINK: the@import directive. Just likeLINK, @import can be used to