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Anchor positioning (transforms and animations)

Microsoft
Proposed

After two rounds of anchor positioning focus areas in Interop 2025 and 2026, the following gaps remain:

  • Positioned elements should correctly respond to transformed anchors.
  • Positioned elements should correctly respond to transitioned/amnimated anchors.
View issue on GitHub

Discussion on GitHub (2)

jpzwarte
sanomalearning

Perhaps also include position-anchor: match-parent? I recently added WPT tests for it.

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