Bug 288531 (abspos-alignment)

Summary: Support alignment properties (align-self/justify-self) in absolute positioned layout
Product: WebKit Reporter: fantasai <fantasai.bugs>
Component: Layout and RenderingAssignee: fantasai <fantasai.bugs>
Status: RESOLVED FIXED    
Severity: Normal CC: 50167214, bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Local Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 288648    
Bug Blocks: 288886    

fantasai
Reported Tuesday, February 25, 2025 9:47:58 PM UTC
The alignment properties align-self and justify-self are defined to work in absolute positioning in Level 3: https://www.w3.org/TR/css-position-3/#abspos-layout However, this is not implemented yet in WebKit. See additional details in css-align-3: https://www.w3.org/TR/css-align-3/#justify-abspos https://www.w3.org/TR/css-align-3/#align-abspos and integration with anchor positioning in css-anchor-position-1: https://www.w3.org/TR/css-anchor-position-1/#positioning
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Radar WebKit Bug Importer
Comment 1 Wednesday, February 26, 2025 9:43:42 PM UTC
<rdar://problem/145689547>
fantasai
Comment 2 Friday, February 28, 2025 5:20:09 AM UTC
Pull request: https://github.com/WebKit/WebKit/pull/41603
EWS
Comment 3 Saturday, March 1, 2025 2:15:07 AM UTC
Committed 291417@main (88b4bea02023): <https://commits.webkit.org/291417@main> Reviewed commits have been landed. Closing PR #41603 and removing active labels.
yisibl
Comment 4 Monday, March 3, 2025 2:09:39 PM UTC
Chrome support starts at 122. https://chromiumdash.appspot.com/commit/d5e6d59db47cbfd7edbc58ce86428b555aab15b6
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