11<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
22<html lang="en">
3- <!-- $Id: conform.src,v 1.19 1997-10-16 16:55:24 ian Exp $ -->
3+ <!-- $Id: conform.src,v 1.20 1997-10-20 02:59:54 ian Exp $ -->
44<HEAD>
55<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
66<TITLE>Definitions and document conventions</TITLE>
@@ -273,13 +273,12 @@ impairments or may provide the choice to disable blinking.</P>
273273<H3><span class="index-def" title="default style sheet">Default style
274274 sheet</span></H3>
275275
276- <P>A user agent can provide a default style sheet, so that even
277- when a document has no associated style sheets, user agents apply
278- rules from their default style sheet for presenting the document. A
279- user agent's default style sheet generally presents elements of the
280- document language in ways that satisfy the expectations that most people
281- have (e.g., for visual browsers, the EM element in HTML is presented
282- using an italic font).
276+ <P>Conforming user agents must apply a default style sheet (or behave
277+ as if they did) prior to all other style sheets for a document. A user
278+ agent's default style sheet generally presents elements of the
279+ document language in ways that satisfy the expectations that most
280+ people have (e.g., for visual browsers, the EM element in HTML is
281+ presented using an italic font).
283282
284283<P>If a document has associated style sheets, the default style sheet
285284is considered along with author and user style sheets when determining
@@ -298,13 +297,25 @@ of elements.
298297
299298<H3><span class="index-def" title="canvas">Canvas</span></H3>
300299
301- <P> The canvas is an abstract rectangular surface on which visual user
302- agent's format document elements. The canvas may be implemented in
303- different media such as scrolled windows, on paper, etc. Please
304- consult the section on <a href="./media.html">media types</a> for more
305- information.
300+ <P> The <a name=" canvas">canvas</a> is an abstract rectangular surface
301+ on which visual user agent's format document elements. The canvas may
302+ be implemented in different media such as scrolled windows, on paper,
303+ etc. Please consult the section on <a href="./media.html">media
304+ types</a> for more information.
306305
307306<H2>Conventions</H2>
307+
308+ <H3>Document language elements and attributes</H3>
309+
310+ <ul>
311+ <li>CSS property, descriptor, and pseudo-class names are delimited
312+ by single quotes.
313+ <li>CSS values are delimited by single quotes.
314+ <li>Document language element names are in upper case letters.
315+ <li>Document language attribute names are in lower case letters
316+ and delimited by double quotes.
317+ </ul>
318+
308319<H3><a name="property-defs">CSS property definitions</a></H3>
309320<P>Each CSS property definition begins with a summary of key
310321information that resembles the following:
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