Closed Bug 400469 Opened 13 years ago Closed 13 years ago
Float containing/clearing problem when a float has a negative margin in Firefox 2
.0 .0 .8
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:188.8.131.52) Gecko/20071008 Firefox/184.108.40.206 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:220.127.116.11) Gecko/20071008 Firefox/18.104.22.168 In the latest Firefox version, the browser seems to have a problem containing and/or clearing a float, that has a negative margin. This is a big problem because a lot of recent CSS layout use this technique to create source ordered multicolumn layouts. Reproducible: Always Steps to Reproduce: 1. create two floats (float:left) 2. change order by adding a positive margin to the first and a negative margin to the second one 3. wrap both floats with another float. This wrapper should contain both inner floats. 4. place any element with property (clear:both) below this wrapper. Actual Results: The wrapper DIV fails to contain the float that has the negative margin. The element below the wrapper fails to clear the float. Expected Results: The wrapper DIV should contain both inner floats. Even if not (because of any bug) the element with clear property below the wrapper should clear the float. I've made a testcase. See the URL. This bug showed up with Firefox 22.214.171.124 and could cause huge problems on modern CSS based layouts with source ordered multicolumn designs.
Status: UNCONFIRMED → RESOLVED
Closed: 13 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 400406
Regression range: 2007-10-03-03 -- 2007-10-04-03
Status: RESOLVED → VERIFIED
Can confirm this using Gecko/20071009 WinXP and Linux official 126.96.36.199. Current trunk works as expected so this is branch only. Must have been happened after 20071002 nightly before 20071003 nightlies. Time-window therefore is: http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=all&branch=MOZILLA_1_8_BRANCH&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2007-10-02&maxdate=2007-10-04&cvsroot=%2Fcvsroot I tested and cannot reproduce after backing out bug #387201. So that seems to be the cause.
Ever confirmed: true
I only could test with Windows Vista but in <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=400406">bug 400406</a> report, all OS-Systems are mentioned. And there are more reports of broken layouts out there ... http://www.stefan-niggemeier.de/blog/firefox-2008-frisst-blog-design/
Info from an email: Mozilla 1.7.12 seems to has this bug too.
I don't think replying this bug will help, was it was marked duplicate #400406 (which I missed, sorry). Dirk, you better reply to #400406. ;)
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