Overview: Nested ruby rendering "collapses" (the top line gets rendered where the next line below it is) when the line-height CSS property exceeds a certain value. Steps to Reproduce: Go to http://www.chinesetools.net/ruby/Mandarin-Expressions_line-height_bug.html. Note the difference between the nested ruby elements in the "b...(line-height: 3.2em)" paragraph and the ones in the "bu...(line-height: 3.3em)" paragraph. Actual Results: When the line-height is set to 3.3em or higher instead of 3.2em, the top line of a nested ruby element gets rendered in the same location as the line that is supposed to be below it, as if the 3rd floor of a building collapsed down into the 2nd floor. Expected Results: The nested ruby elements should maintain their integrity as line-height increases. Build & Platform: Version 5.1.2 (6534.52.7, r103700) on Intel Mac OS X 10.6.8
On WebKit r103743 on Windows Vista, the "collapsing" occurs at line-height: 3.2em, but not at line-height: 3.1em. Evidently the threshold is slightly different on different platforms.
I tried to find wayback archive link for the test case but it seems that it redirects to unknown site. Due to lack of tests and recent progressions in CSS-Ruby, I think we should mark this as 'RESOLVED CONFIGURATION CHANGED', unless if it is still applicable and we have test case reflecting that it is still an issue. @Alan - any thoughts?
I wish we could close it as "insufficient information".