Sent by Philippe Wittenbergh on 17 July 2009 02:02
On Jul 17, 2009, at 5:35 AM, Bobby Jack wrote:
> Not if there's a relatively-positioned element on the page, in my
> experience:
>
> http://www.fiveminuteargument.com/fixed-position-z-index
>
> Is this a bug or expected behaviour?
That is the expected behaviour. CSS2.1:Appendix E has all the details.
In short, the DIV without z-index (z-index:auto per definition) and
the UL are both at the same stacking level (both are positioned, both
have z-index:auto). Because the UL comes later in the source, it is
painted/layered on top.
Note that IE 6 & 7 do all kind of crazy things with stacking levels.
If you use those browsers to test your page, results may not be
consistent with the spec (cough, cough, how's that for a polite
sentence ?).
Philippe
---
Philippe Wittenbergh
http://l-c-n.com/
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