User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050217 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050217 When viewing this site with Firefox 1.0.1, the site displays correctly. Using this Mozilla build, rendering completely fails, and nearly nothing is rendered. The page (xhtml) and the css used validate without failure! Since its quite difficult to describe, see attachements. But in short, Mozilla simply creates havoc with this specific page. Reproducible: Always Steps to Reproduce: 1. Go to webpage listed above. Actual Results: Page rendered completely wrong. Expected Results: Page renderes correctly (ok, this all sounds quite stupid, but what should I say...)

The correct rendering with Firefox 1.0.1.

Screenshot of Mozilla 1.8b wrongly rendering the page.

Ah, yes, I forgot, Mozilla receives the full page, not that you think that the xhtml file is bad. Further, the xhtml file seems to be parsed correctly, at least the dom tree viewed with the dom inspector looks sane.

Same with Firefox nightbuild -> Core / Layout (but maybe Tech Evang issue) Page uses many elements which have height:auto and overflow-x and overflow-y set to hidden. If I changed height for example of menu bar to some value, it shows clearly.

An extremely simplified version of this page and css can be found at http://n.ethz.ch/student/awuest/testcases/layoutbug/. The problem seems to be with the 'position' attribute of the #menu div. If changed from 'absolute' to 'relative', the page displays correctly. But with 'absolute', it just goes wrong (crammed menu bar, main content is not being displayed, etc.). I hope this helps a bit.

Screenshot of Firefox 1.0.1 correctly rendering the testcase http://n.ethz.ch/student/awuest/testcases/layoutbug/.

Screenshot of Firefox 1.0.1 correctly rendering the testcase http://n.ethz.ch/student/awuest/testcases/layoutbug/.

Comment on attachment 177151 [details] Screenshot of Mozilla 1.8b22005031002 wrongly rendering the page. Screenshot of Mozilla 1.8b22005031002 wrongly rendering the testcase http://n.ethz.ch/student/awuest/testcases/layoutbug/. (sorry for all those changes, but I've mixed up the files)

Screenshot of Firefox 1.0.1 correctly rendering the testcase http://n.ethz.ch/student/awuest/testcases/layoutbug/. (Sorry, NOW I've got the screenshot right. Must. Why's there no preview anyway...)

Andreas: the problem is that the menu div has 0 width. It has 100% width and its parent (abs_container) has overflow:hidden, which makes this a... dupe of "Width:100% broken if parent block element has overflow:hidden" *** This bug has been marked as a duplicate of 282754 ***

(In reply to comment #10) > Andreas: the problem is that the menu div has 0 width. It has 100% width and > its parent (abs_container) has overflow:hidden, which makes this a... > > dupe of "Width:100% broken if parent block element has overflow:hidden" > > *** This bug has been marked as a duplicate of 282754 *** Ah, ok, thanks a lot then! Sorry for the dupe!!