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MQ5 User Prefs: prefers-reduced-transparency #1709

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Aug 11, 2017
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MQ5 User Prefs: prefers-reduced-transparency #1709

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MQ5 User Prefs: prefers-reduced-transparency
cookiecrook Aug 10, 2017
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Review: title change requested by @frivoal
cookiecrook Aug 11, 2017
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34 changes: 34 additions & 0 deletions mediaqueries-5/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -478,6 +478,36 @@ Detecting the desire for less motion on the page: the 'prefers-reduced-motion' f

</dl>

<h3 id="prefers-reduced-transparency">
Detecting the desire for reduced transparency on the page: the 'prefers-reduced-transparency' feature</h3>

<pre class='descdef mq'>
Name: prefers-reduced-transparency
Value: no-preference | reduce
For: @media
Type: discrete
</pre>

The 'prefers-reduced-transparency' media feature is used to detect if the user
has requested the system minimize the amount of transparent or translucent
layer effects it uses.

<dl dfn-type=value dfn-for="@media/prefers-reduced-transparency">
<dt><dfn>no-preference</dfn>
<dd>
Indicates that the user has made no preference known
to the system. This keyword value evaluates as false
in the <a>boolean context</a>.

<dt><dfn>reduce</dfn>
<dd>
Indicates that user has notified the system that they
prefer an interface that minimizes the amount of
transparent or translucent layer effects.

</dl>


<h2 id="changes" class="no-num">
Changes</h2>
<h3 id="changes-2017">
Expand All @@ -493,6 +523,10 @@ The following changes were made to this specification since the

<li>
Add 'prefers-reduced-motion' media feature.

<li>
Add 'prefers-reduced-transparency' media feature.

</ul>


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