Bug 261532

Summary: backface-visibility:hidden should create a stacking context and containing block
Product: WebKit Reporter: Matt Woodrow <mattwoodrow>
Component: Layout and RenderingAssignee: Matt Woodrow <mattwoodrow>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://github.com/web-platform-tests/wpt/pull/41972

Description Matt Woodrow 2023-09-13 15:40:54 PDT 
<rdar://114732608>

As of https://github.com/w3c/csswg-drafts/pull/9348, backface-visibility:hidden should create a containing block and stacking context, if the element participates in a 3D rendering context.
Comment 1 Matt Woodrow 2023-09-13 15:49:04 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/17752
Comment 2 Matt Woodrow 2023-09-13 17:39:08 PDT 
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/41972
Comment 3 EWS 2023-09-13 19:50:39 PDT 
Committed 267980@main (2440e9efc74d): <https://commits.webkit.org/267980@main>

Reviewed commits have been landed. Closing PR #17752 and removing active labels.