Reference index / 모달·오버레이·패널
Action Sheet
A mobile sheet grouping related commands.
When to use it
Specifying modal, overlay, and panel interfaces and interactions.
Caveats and distinctions
Detailed behavior can differ across platforms and design systems despite identical names. Design keyboard, assistive-technology, and error behavior together.
Implementation and classification
UI·UX / 모달·오버레이·패널
Sources and verification status
https://www.w3.org/WAI/ARIA/apg/patterns/
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