[Webkit-unassigned] [Bug 193534] [LFC][BFC] A block element with transform is a containing block for positioned descendants.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193534

--- Comment #1 from zalan <zalan at apple.com> ---
For elements whose layout is governed by the CSS box model, any value other than none for the transform property also causes the element to establish a containing block for all descendants.

https://www.w3.org/TR/css-transforms-1/

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