[Webkit-unassigned] [Bug 234145] New: When transform-style: preserve-3d is used with a grouping property it should still create a containing block

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=234145

            Bug ID: 234145
           Summary: When transform-style: preserve-3d is used with a
                    grouping property it should still create a containing
                    block
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mrobinson at webkit.org

https://drafts.csswg.org/css-transforms-2/#interpolation-of-transform-functions says:

> The use of this property with any value other than none establishes a stacking context. It also establishes a containing block for all descendants, just like the transform property does.

Currently we are handling this via the StyleAdjuster, which is why preserve-3d-flat-grouping-properties-containing-block.html is failing the WPT test suite.

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