[giow] (2) compat requires animated GIFs to play together (hamster da…

…nce strikes again)

git-svn-id: http://svn.whatwg.org/webapps@5640 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -86525,6 +86525,16 @@ <h4 id=images-0><span class=secno>14.3.3 </span>Images</h4>
   expected to provide access to the context menu that would have come
   up if the user interacted with the actual image.</p>
 
+  <hr><p>All animated images with the same <a href=#absolute-url>absolute URL</a> and
+  the same image data are expected to be rendered synchronised to the
+  same timeline as a group, with the timeline starting at the time of
+  the most recent addition to the group.</p>
+
+  <p class=note>In other words, the animation loop of an animated
+  image is restarted each time another image with the same
+  <a href=#absolute-url>absolute URL</a> and image data begins to animate, e.g.
+  after being inserted into the document.</p>
+
   <hr><p>The following CSS rules are expected to apply when the
   <code><a href=#document>Document</a></code> is in <a href=#quirks-mode>quirks mode</a>:</p>
 

index

@@ -82439,6 +82439,16 @@ iframe:not([seamless]) { border: 2px inset; }</pre>
   expected to provide access to the context menu that would have come
   up if the user interacted with the actual image.</p>
 
+  <hr><p>All animated images with the same <a href=#absolute-url>absolute URL</a> and
+  the same image data are expected to be rendered synchronised to the
+  same timeline as a group, with the timeline starting at the time of
+  the most recent addition to the group.</p>
+
+  <p class=note>In other words, the animation loop of an animated
+  image is restarted each time another image with the same
+  <a href=#absolute-url>absolute URL</a> and image data begins to animate, e.g.
+  after being inserted into the document.</p>
+
   <hr><p>The following CSS rules are expected to apply when the
   <code><a href=#document>Document</a></code> is in <a href=#quirks-mode>quirks mode</a>:</p>
 

source

@@ -98809,6 +98809,18 @@ iframe:not([seamless]) { border: 2px inset; }</pre>
 
   <hr>
 
+  <p>All animated images with the same <span>absolute URL</span> and
+  the same image data are expected to be rendered synchronised to the
+  same timeline as a group, with the timeline starting at the time of
+  the most recent addition to the group.</p>
+
+  <p class="note">In other words, the animation loop of an animated
+  image is restarted each time another image with the same
+  <span>absolute URL</span> and image data begins to animate, e.g.
+  after being inserted into the document.</p>
+
+  <hr>
+
   <p>The following CSS rules are expected to apply when the
   <code>Document</code> is in <span>quirks mode</span>:</p>