Please see attached reduction. It has two instances of the anchor tag, both using the same CSS to give some background color/padding. Notice the first blue box renders but the second doesn't. Some test preceeding the anchor tag is enough to cause it to render. Any text will work including HTML text elements such as the LABEL tag or a literal.
Created attachment 14856 [details] html reduction
May be related to:http://bugs.webkit.org/show_bug.cgi?id=13237
<rdar://problem/5399616>
Beth tells me this is a duplicate of bug 13237. *** This bug has been marked as a duplicate of 13237 ***