Created attachment 149879 [details] Test case See attached test case. r53420 changed the way in which boxes were marked dirty in RenderBlock::markLinesDirtyInBlockRange. Reverting that part of the change allows this test to pass. Reported in Chromium: http://code.google.com/p/chromium/issues/detail?id=129564
I am not able to reproduce this bug and Safari 16, STP 156, Chrome Canary 109 and Firefox Nightly 108 seems to render it same. @zalan - this is float related, is it something IFC progression? Thanks!