It’s always fun to find another bug in IE6. This XHTML/CSS kills IE6 out right. It is cut down from a real project and had us amused for a while.
This seems to be the minimal set that causes the crash. The negative margin is required too.
We swapped the <p> for a <span> in the end.
<head> <style> #inner DIV { background: #cccccc; } #outer P:first-letter { margin: -1px; } </style> </head> <body> <div id="outer"> <div id="inner"> <div> <p><a href="">ie6 breaks</a></p> </div> </div> </div> </body> </html>