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[pull] main from mdn:main#910

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Apr 17, 2026
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[pull] main from mdn:main#910
pull[bot] merged 1 commit intoryrodriguez25:mainfrom
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@pull pull bot commented Apr 17, 2026

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Created by pull[bot] (v2.0.0-alpha.4)

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* Document backdrop root concept on backdrop-filter page

Add a Description section explaining that backdrop-filter
effects are bounded by the nearest ancestor backdrop root,
and list the properties that create a backdrop root (filter,
opacity, mask, clip-path, backdrop-filter, mix-blend-mode,
will-change). This is a common source of confusion when
backdrop-filter appears to have no effect.

Fixes #40602

* address pepelsbey review feedback

- Move Description section after Values (matching background property structure)
- Add backdrop root live example demonstrating will-change: opacity effect

* Update demo

---------

Co-authored-by: Vadim Makeev <vmakeev@mozilla.com>
@pull pull bot locked and limited conversation to collaborators Apr 17, 2026
@pull pull bot added the ⤵️ pull label Apr 17, 2026
@pull pull bot merged commit 20bd509 into ryrodriguez25:main Apr 17, 2026
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