[css2] Section 11.1 clarification on overflow cases

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extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401818

Author: ianbjacobs

css2/visufx.src

@@ -31,7 +31,7 @@ class="propinst-height">'height'</span> property, not by content
 height).
 
 <li>A descendent box is <a href="visuren.html#absolute-positioning">positioned
-absolutely</a> partly outside of the box.
+absolutely</a>, partly outside the box.
 
 <li>A descendent box has <a href="box.html#margin-properties">negative margins</a>, causing it
 to be positioned partly outside the box.