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[css2] added all changes I could think of
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‎css2/changes.src‎

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html lang="en">
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<!-- $Id: changes.src,v 1.4 1997-09-23 14:08:52 ian Exp $ -->
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<!-- $Id: changes.src,v 1.5 1997-11-28 16:11:20 howcome Exp $ -->
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<HEAD>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<TITLE>Appendix B: Changes from CSS1</TITLE>
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</HEAD>
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<BODY>
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<H1 align="center">Appendix B: Changes from CSS1</H1>
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<em>To be written...</em>
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<P>CSS2 builds on <a rel="biblioentry" href="./refs.html#ref-CSS1"
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class="normref">[CSS1]</a> and all valid CSS1 stylesheets are valid
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CSS2 stylesheets. The changes between the <a
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href="http://www.w3.org/TR/REC-CSS1">CSS1 specification</a> and this
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specification fall into three groups: new functionality, updated
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descriptions of CSS1 functionality, and changes to CSS1.
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<H2>New functionality</H2>
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<P>In addition to the functionality of CSS1, CSS2 supports:
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<UL>
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<LI>The concept of <A HREF="media.html">Media types</A>
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<LI><A HREF="paged.html>Paged media</A>
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<LI><A HREF="aural.html">Aural style sheets</A>
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<LI><A HREF="fonts.html">An extended <a
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href="fonts.html#font-selection">font selection</A> mechanism,
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including intelligent matching, synthesis, and downloadable fonts.
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<LI><A HREF="tables.html">Tables</A>, including new values on <span
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class="propinst-display">'display'</span> and <span
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class="propinst-vertical-align">'vertical-align'</span>
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<LI><A HREF="flowobj.html#relative-positioning">Relative</A> and <A
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HREF="flowobj.html#absolute-positioning">Absolute positioning</A>.
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<LI>An extended <A HREF="selector.html">selector</A> mechanism,
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including child selectors, adjacent selectors and attribute selectors.
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<LI>[generated text?]
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<LI>[text-decoration?]
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<LI>[hover?]
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<LI>[filter?]
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</UL>
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<H2>Updated descriptions</H2>
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<P>The CSS1 specification was short and concise. This specification is
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much more voluminous and more readable. Much of the additional content
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describes new functionality, but the description of CSS1 features has
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also been extended. Except in a few cases described below, the
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rewritten descriptions do not indicate a change in syntax nor
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semantics.
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<!--
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<UL>
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<LI>recommends that the user preferece is used as the initial value
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</UL>
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-->
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<H2>Changes</H2>
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<P>In CSS2
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<UL>
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<LI>In CSS2 <A HREF="syndata.html#color-units">color values</A> are clipped
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with regard to the device gamut, not with regard to the sRGB gamut as
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in CSS1.
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<LI>[strength of constraints based on writing direction]
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<LI>In CSS1, several properties (e.g. 'padding') had values referring
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to the width of the parent element. This was an error; the value
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should always refer to the width of a block-level element and this
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specification reflects this.
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</UL>
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</BODY>
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</HTML>
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