Paul BakausandClaude Opus 4.6 9ffa802c89 Hide overlays for non-rendered elements using IntersectionObserver ...

Overlays are now created hidden and revealed by an IntersectionObserver
(rootMargin: 99999px), so they automatically show/hide when their target
becomes visible or invisible -- handles closed <details>, display:none,
hidden modals, overflow:hidden clipping, etc. without polling.

Adds overlay-positioning.html test fixture with 9 scenario groups
covering transforms, closed details, sticky, overflow, position offsets,
flex/grid, containing-block creators, and combinations.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-27 23:12:24 -07:00

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skills

Hide overlays for non-rendered elements using IntersectionObserver

2026-03-27 23:12:24 -07:00