RESOLVED INVALID 43958
transform-style perspective-3d reverts back to flat when in 2 elements with overflow:(other then normal) 
https://bugs.webkit.org/show_bug.cgi?id=43958
Summary transform-style perspective-3d reverts back to flat when in 2 elements with o...
Mient-jan stelling
Reported 2010-08-13 01:58:21 PDT
Created attachment 64312 [details] a clear cut example of the bug. When using overflow:( for example auto ) in 2 elements the div in those to reverts back to transform-style flat. div overflow:auto div overflow:auto div reverts back to transform-style flat see url for a simple example of the bug.
Attachments
a clear cut example of the bug. (34 bytes, text/plain)
2010-08-13 01:58 PDT, Mient-jan stelling 		no flags
Details
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Simon Fraser (smfr)
Comment 1 2010-12-21 12:02:10 PST
Please attach testcases, rather than pointing to URLs that might disappear. overflow:hidden overrides transform-style: preserve-3d, because you have to flatten in order to clip. Is that what's happening here?
Martin Robinson
Comment 2 2021-10-14 09:05:24 PDT
The test case is long gone, but I think this might be expected behavior. In addition to what Simon writes above, overflow values other than visible or clip are "grouping" properties according to https://drafts.csswg.org/css-transforms-2/#grouping-property-values. Given that this is the case and that support for overflow:clip isn't yet complete, I think it makes sense to close this issue. Please comment if you have a working test case or if I've misinterpreted this situation.
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