Firefox CSS Bug
written by Steven on October 23, 2007
If you do:
overflow: auto;
on a tbody tag, then firefox will ignore any z-index on that tag or its children.
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Steven Bristol has written code for the past 20 years. He like green vegetables and kittens, oh and butterflies too. He loves to throw ninja stars at his enemies.

3 Comments
getting a bit specific there aren’t ya Steve? Who uses z-index anyways, or tables for that matter? :)
Sandro,
In Less Accounting I have a table at the top of many pages, that actually displays…wait for it…tabular data. Now I want to add a javascript menu to the table but it doesn’t quite work because the z-index is ignored. So it will have to implement the table another way.
Sounds like you will need the IFrame trick for that. I had this problem on a calendar but just used the iframe trick, and never figured out it was s firefox issue.