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<p> The <aclass=propertydata-link-type=propdeschref=#descdef-updatestitle=updates>updates</a> media feature is used to query the ability of the output device to modify the apearance of content once it has been rendered. It accepts the following values:
Changes Since the Media Queries Level 3</span><aclass=self-linkhref=#changes-2012></a></h3>
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<p>The following changes were made to this specification since the
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<ahref=http://www.w3.org/TR/2012/PR-css3-mediaqueries-20120426/>26 April 2012
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Proposed Recomendation of Media Queries Level 3</a>:
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<ahref=http://www.w3.org/TR/css3-mediaqueries/>19 June 2012 Recomendation of Media Queries Level 3</a>:
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<p><ul>
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<li>
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For a media feature <var>feature</var>,
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<code>(<var>feature</var>)</code> will evaluate to true if
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<code>(<var>feature</var>:<var>x</var>)</code> will evaluate to true
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for a value <var>x</var> other than zero or zero followed by a unit
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identifier (i.e., other than <code>0</code>, <code>0px</code>,
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<code>0em</code>, etc.)<ins> or the keyword <aclass=cssdata-link-type=maybehref=#valuedef-none0title=none>none</a></ins>.
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<li>The <aclass=propertydata-link-type=propdeschref=#descdef-scripttitle=script>script</a> media feature was added.
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<li>The <aclass=propertydata-link-type=propdeschref=#descdef-pointertitle=pointer>pointer</a> media feature was added.
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<li>The <aclass=propertydata-link-type=propdeschref=#descdef-hovertitle=hover>hover</a> media feature was added.
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<li>The <aclass=propertydata-link-type=propdeschref=#descdef-luminositytitle=luminosity>luminosity</a> media feature was added.
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<li><spanclass=cssdata-link-type=maybetitle=or>or</span>, <spanclass=cssdata-link-type=maybetitle=and>and</span>, <aclass=cssdata-link-type=maybehref=#valuedef-onlytitle=only>only</a> and <aclass=cssdata-link-type=maybehref=#valuedef-nottitle=not>not</a> are invalid media types.
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<li>White space is required around the keyword “and” as well as after “not” and “only”.
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<ahref=#mq-boolean-context>Boolean-context</a><adata-link-type=dfnhref=#media-featuretitle="media features">media features</a> are now additionally false
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if they would be true for the keyword <aclass=cssdata-link-type=maybehref=#valuedef-none0title=none>none</a>.
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<li>
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<adata-link-type=dfnhref=#media-featuretitle="media features">Media features</a> with numeric values can now be written in a <ahref=mq-range-context>range context</a>.
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<li>
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The <aclass=propertydata-link-type=propdeschref=#descdef-scripttitle=script>script</a>, <aclass=propertydata-link-type=propdeschref=#descdef-pointertitle=pointer>pointer</a>, <aclass=propertydata-link-type=propdeschref=#descdef-hovertitle=hover>hover</a>, <aclass=propertydata-link-type=propdeschref=#descdef-luminositytitle=luminosity>luminosity</a>, and <aclass=propertydata-link-type=propdeschref=#descdef-updatestitle=updates>updates</a> media features were added.
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<li>
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<spanclass=cssdata-link-type=maybetitle=or>or</span>, <spanclass=cssdata-link-type=maybetitle=and>and</span>, <aclass=cssdata-link-type=maybehref=#valuedef-onlytitle=only>only</a> and <aclass=cssdata-link-type=maybehref=#valuedef-nottitle=not>not</a> are disallowed from being recognized as media types,
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even invalid ones.
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(They’ll trigger a syntax error instead.)
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<li>
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White space is required around the keyword “and” as well as after “not” and “only”.
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<li>
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All media types except for <aclass=cssdata-link-type=maybehref=#valuedef-screentitle=screen>screen</a>, <aclass=cssdata-link-type=maybehref=#valuedef-printtitle=print>print</a>, <aclass=cssdata-link-type=maybehref=#valuedef-speechtitle=speech>speech</a>, and <aclass=cssdata-link-type=maybehref=#valuedef-alltitle=all>all</a> are deprecated.
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