Created attachment 638629 [details] Image showing rendering issue User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:13.0) Gecko/20100101 Firefox/13.0.1 Build ID: 20120614114901 Steps to reproduce: Nested two divs and applied margin-bottom to the inner one. Added a two divs inside the inner div with width 50% and floated left. Added a div below the two floated left with clear:both applied to it. Example at: http://jsfiddle.net/CdrpC/8/ Actual results: Gap rendered above the two wrapping divs equal to that of the margin applied to the bottom of the inner one. Expected results: There should only be a gap (margin) at the bottom.
This is a really old bug. I can reproduce it using any build from Firefox 3.6.28 - Nightly 20120703. I haven't bothered checking older builds.
I can confirm this bug, which seems to be there since a long time, and never fixed ! Could someone work on it ? Thanks.
Dupping forward to a bug with a testcase attached directly.