Update DoC

--HG--
extra : rebase_source : 8bf101af96b7d03541e1d77bfecd461c3c845209

Author: fantasai

css3-flexbox/issues-lc-2012.html

@@ -207,7 +207,7 @@ <h1>CSS Flexible Box Layout Level 3 Disposition of Comments for 2012-06-12 LCWD<
 Response: <a href="http://lists.w3.org/Archives/Public/www-style/2012Jul/0274.html">http://lists.w3.org/Archives/Public/www-style/2012Jul/0274.html</a>
 Closed:   Accepted
 </pre>
-<pre class="a" id="issue-21">
+<pre class="open" id="issue-21">
 Issue 21. <a href="issue-21">#</a>
 Summary:  Tables as flex items underdefined
 From:     fantasai