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Added "changes since last WD" section to the spec, in preparation for a new WD.
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‎css3-images/Overview.html‎

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<h1>CSS Image Values and Replaced Content Module Level 3</h1>
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<h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 1 July 2011</h2>
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<h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 2 July 2011</h2>
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<dl>
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<dt>Latest Version:
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Interpolating <i>&lt;gradient></i></a>
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</ul>
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<li class=no-num><a href="#changes">Changes Since the 17 February 2011
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Working Draft</a>
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<li class=no-num><a href="#acknowledgments">Acknowledgments</a>
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<li class=no-num><a href="#references">References</a>
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<!-- ====================================================================== -->
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</ul>
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<h2 class=no-num id=changes>Changes Since the 17 February 2011 Working
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Draft</h2>
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<p>The following changes were made to this specification since the <a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/">17 February 2011
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Working Draft</a>:
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<dl>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#resolution-units">3.
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Resolution Units</a>
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<dd>
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<ul>
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<li>Defined the resolution unit more precisely. In particular, clarified
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what it means for a vector image.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-notation">4.2.
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Image Fallbacks: the &lsquo;<code class=css>image()</code>&rsquo;
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notation</a>
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<dd>
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<ul>
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<li>Simplified the ultimate fallback back to just &lt;color>, as that
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was the ultimate point - when you absolutely can't display an image,
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you may still need to display a color for constrast purposes.
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<li>Dropped the &lt;url-token> production for the non-ultimate
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arguments. This was fundamentally ambiguous with the keywords, and is
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unnecessary complexity.
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<li>Added the ability to declare the directionality of an image, so it's
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automatically inline-direction flipped when placed in an
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opposite-directional context.
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<li>Added a requirement that impls must support the #xywh form of Media
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Queries as part of image() support.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#cross-fade-function">4.4.
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Combining Images: The &lsquo;<code class=css>cross-fade()</code>&rsquo;
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notation</a>
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<dd>
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<ul>
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<li>Defined the algorithm formally in PD terms.
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<li>Changed the compositing operation from "over" to "plus".
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#linear-gradients">5.1.
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Linear Gradients</a>
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<dd>
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<ul>
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<li>Changed the meaning of angles in the first argument to being bearing
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angles.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#repeating-gradients">5.3.
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Repeating Gradients</a>
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<dd>
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<ul>
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<li>Changed the results of a degenerate repeating gradient (where the
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first and last stop have the same position). Previously, it generated a
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solid-color image matching the last color-stop. Now, it moves the last
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color-stop to be 1px away from the first. This was done so that
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repeating gradients had continuous behavior.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#object-fit">6.4.
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Sizing Objects: The &lsquo;<code class=property>object-fit</code>&rsquo;
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property</a>
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<dd>
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<ul>
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<li>Added &lsquo;<code class=property>none</code>&rsquo; and
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&lsquo;<code class=property>scale-down</code>&rsquo; values.
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<li>Specified that contents are always clipped, and &lsquo;<code
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class=property>overflow</code>&rsquo; on the element has no effect.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-resolution">7.
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Overriding Image Resolutions: the &lsquo;<code
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class=property>image-resolution</code>&rsquo; property</a>
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<dd>
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<ul>
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<li>Specified that image-resolution works on *all* the images for the
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element it's specified on, both the content of replaced elements and
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the various &lt;image>-using properties.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-rendering">9.
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Determining How to Scale an Image: The &lsquo;<code
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class=property>image-rendering</code>&rsquo; Property</a>
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<dd>
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<ul>
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<li>Changed the &lsquo;<code
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class=property>optimize-contrast</code>&rsquo; value to &lsquo;<code
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class=property>crisp-edges</code>&rsquo;, and rewrote the description
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slightly to reduce confusion in what it does.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#interpolation">11.
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Interpolation</a>
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<dd>
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<ul>
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<li>Added special rules for interpolating cross-fade(), to avoid nested
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cross-fade()s when possible.
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</ul>
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<dt><a
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href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#interpolating-gradients">11.2.
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Interpolating &lt;gradient></a>
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<dd>
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<ul>
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<li>Fixed a bug in interpolation so transitioning between linear
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gradients specified with keywords takes the shortest path.
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</ul>
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</dl>
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<!-- ====================================================================== -->
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<h2 class=no-num id=acknowledgments>Acknowledgments</h2>
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<h2 class=no-num id=references>References</h2>

‎css3-images/Overview.src.html‎

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<!-- ====================================================================== -->
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<h2 class="no-num" id="changes">Changes Since the 17 February 2011 Working Draft</h2>
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<p>The following changes were made to this specification since the <a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/">17 February 2011 Working Draft</a>:</p>
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<dl>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#resolution-units">3. Resolution Units</a></dt>
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<dd>
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<ul>
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<li>Defined the resolution unit more precisely. In particular, clarified what it means for a vector image.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-notation">4.2. Image Fallbacks: the 'image()' notation</a></dt>
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<dd>
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<ul>
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<li>Simplified the ultimate fallback back to just &lt;color>, as that was the ultimate point - when you absolutely can't display an image, you may still need to display a color for constrast purposes.</li>
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<li>Dropped the &lt;url-token> production for the non-ultimate arguments. This was fundamentally ambiguous with the keywords, and is unnecessary complexity.</li>
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<li>Added the ability to declare the directionality of an image, so it's automatically inline-direction flipped when placed in an opposite-directional context.</li>
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<li>Added a requirement that impls must support the #xywh form of Media Queries as part of image() support.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#cross-fade-function">4.4. Combining Images: The 'cross-fade()' notation</a></dt>
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<dd>
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<ul>
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<li>Defined the algorithm formally in PD terms.</li>
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<li>Changed the compositing operation from "over" to "plus".</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#linear-gradients">5.1. Linear Gradients</a></dt>
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<dd>
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<ul>
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<li>Changed the meaning of angles in the first argument to being bearing angles.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#repeating-gradients">5.3. Repeating Gradients</a></dt>
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<dd>
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<ul>
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<li>Changed the results of a degenerate repeating gradient (where the first and last stop have the same position). Previously, it generated a solid-color image matching the last color-stop. Now, it moves the last color-stop to be 1px away from the first. This was done so that repeating gradients had continuous behavior.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#object-fit">6.4. Sizing Objects: The 'object-fit' property</a></dt>
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<dd>
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<ul>
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<li>Added 'none' and 'scale-down' values.</li>
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<li>Specified that contents are always clipped, and 'overflow' on the element has no effect.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-resolution">7. Overriding Image Resolutions: the 'image-resolution' property</a></dt>
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<dd>
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<ul>
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<li>Specified that image-resolution works on *all* the images for the element it's specified on, both the content of replaced elements and the various &lt;image>-using properties.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#image-rendering">9. Determining How to Scale an Image: The 'image-rendering' Property</a></dt>
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<dd>
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<ul>
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<li>Changed the 'optimize-contrast' value to 'crisp-edges', and rewrote the description slightly to reduce confusion in what it does.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#interpolation">11. Interpolation</a></dt>
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<dd>
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<ul>
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<li>Added special rules for interpolating cross-fade(), to avoid nested cross-fade()s when possible.</li>
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</ul>
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</dd>
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<dt><a href="http://www.w3.org/TR/2011/WD-css3-images-20110217/#interpolating-gradients">11.2. Interpolating &lt;gradient></a></dt>
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<dd>
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<ul>
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<li>Fixed a bug in interpolation so transitioning between linear gradients specified with keywords takes the shortest path.</li>
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</ul>
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</dd>
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</dl>
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<!-- ====================================================================== -->
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<h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
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<h2 class="no-num" id="references">References</h2>

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