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clarify the (media-feature) feature; remove index as it is useless
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‎css3-mediaqueries/Overview.html‎

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<body>
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<div class=head> <!--begin-logo-->
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<p><a href="http://www.w3.org/"><img alt=W3C height=48
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src="http://www.w3.org/Icons/w3c_home" width=72></a> <!--end-logo--></p>
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src="http://www.w3.org/Icons/w3c_home" width=72></a> <!--end-logo-->
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<h1 id=media-queries>Media Queries</h1>
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<h2 class="no-num no-toc" id=w3c-working>Editor's Draft 26 August 2008</h2>
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<h2 class="no-num no-toc" id=w3c-working>Editor's Draft 1 September 2008</h2>
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<dl>
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<dt>This version:
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<dd><a
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href="http://www.w3.org/TR/2008/ED-css3-mediaqueries-20080826/">http://www.w3.org/TR/2008/ED-css3-mediaqueries-20080826/</a>
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href="http://www.w3.org/TR/2008/ED-css3-mediaqueries-20080901/">http://www.w3.org/TR/2008/ED-css3-mediaqueries-20080901/</a>
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<dt>Latest version:
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there must one or more additional UAs which can also pass those
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equivalent tests in the same way for the purpose of interoperability.
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The equivalent tests must be made publicly available for the purposes
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of peer review.</p>
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of peer review.
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<dt>implementation
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<p>A minimum of another three months of the CR period must elapse. That
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is, this specification will not exit CR before 01 September 2007. When
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the specification exits CR, an implementation report will be published.
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At this point, no such report exists.</p>
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At this point, no such report exists.
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<li>
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<p>The specified technology must not be harmful for accessibility.</p>
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<p>The specified technology must not be harmful for accessibility.
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</ol>
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<p>W3C Members can also send comments directly to the CSS Working Group.
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<li class=no-num><a href="#other-references">Other references</a>
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</ul>
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<li class=no-num><a href="#index">Index</a>
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</ul>
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<!--end-toc-->
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<p>Is dropped because the &lsquo;<code
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class=css>orientation</code>&rsquo; feature does not accept the
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&lsquo;<code class=css>min-</code>&rsquo; prefix.</p>
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&lsquo;<code class=css>min-</code>&rsquo; prefix.
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</div>
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<li>
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<div class=example>
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<p>This media query is invalid because negative lengths are not allowed
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for the &lsquo;<code class=css>width</code>&rsquo; media feature:</p>
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for the &lsquo;<code class=css>width</code>&rsquo; media feature:
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<pre>@media (min-width: -100px) { ... }</pre>
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</div>
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href="http://www.w3.org/TR/CSS21/syndata.html#block">the rules for
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matching pairs</a> of (), [], {}, "", and &#39;&#39;, and correctly
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handling escapes. Media queries with unexpected tokens are ignored. <a
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href="#CSS21" rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a></p>
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href="#CSS21" rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>
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<div class=example>
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<pre>@media (example, all,), speech { /* only applicable to speech devices */ }
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features, on the other hand, can also be used without a value. For a
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media feature <var>feature</var>, <code>(<var>feature</var>)</code> will
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evaluate to true if <code>(<var>feature</var>:<var>x</var>)</code> will
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evaluate to true for a value <var>x</var> other than zero. Media features
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that are min/max prefixed are treated in an identical way.
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evaluate to true for a value <var>x</var> other than zero, including e.g.
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<code>0</code>, <code>0px</code>, and <code>0em</code>. Media features
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that are prefixed by min/max cannot be used without a value. When a media
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feature prefixed with min/max is used without a value it makes the media
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query malformed.
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<li>Properties may accept more complex values, e.g., calculations that
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involve several other values. Media features only accept single values:
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one keyword, one number, or a number with a unit identifier. (The only
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exceptions are the &lsquo;<code class=css>aspect-ratio</code>&rsquo; and
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&lsquo;<code class=css>device-aspect-ratio</code>&rsquo; media features.)
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</ul>
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<div class=example>
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<!---->
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</dl>
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<!--end-informative-->
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<h2 class=no-num id=index>Index</h2>
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<!--begin-index-->
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<ul class=indexlist>
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<li>expressions, <a href="#expressions" title=expressions>#</a>
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<li>media descriptor
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<ul>
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<li>parsing of, <a href="#parse" title="media descriptor parsing
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of">#</a>
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</ul>
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<li>media features, <a href="#media" title="media features">#</a>
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</ul>
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<!--end-index-->

‎css3-mediaqueries/Overview.src.html‎

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features, on the other hand, can also be used without a value. For a media
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feature <var>feature</var>, <code>(<var>feature</var>)</code> will evaluate
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to true if <code>(<var>feature</var>:<var>x</var>)</code> will evaluate to
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true for a value <var>x</var> other than zero. Media features that are
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min/max prefixed are treated in an identical way.</li>
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true for a value <var>x</var> other than zero, including e.g.
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<code>0</code>, <code>0px</code>, and <code>0em</code>. Media features that
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are prefixed by min/max cannot be used without a value. When a media feature
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prefixed with min/max is used without a value it makes the media query
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malformed.</li>
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<li>Properties may accept more complex values, e.g., calculations that
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involve several other values. Media features only accept single
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<p>[Here will be inserted the file "informative.inc"]</p>
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<!--end-informative-->
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<h2 class="no-num" id="index">Index</h2>
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<!--index-->
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</body>
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</html>

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