Removed class=issue from list of changes.

Author: bert-github

css3-layout/Overview.src.html

@@ -2163,7 +2163,7 @@ <h2 id=changes>Changes</h2>
 <p>Summary of changes since 
 <a href="/TR/2010/WD-css3-layout-20100429/" >29 April 2010 draft:</a>
 
-<ul class=issue>
+<ul>
 <li>Added the 'chains' property to create sequences of slots.
 <li>Added <a href="#slot-pseudo">region-based styling:</a> properties
 can be set on the part of an element that is inside a slot, different