Unverified50% confidenceFactExact time
浏览器会自动为popover弹层元素设置适当的ARIA角色（如dialog或listbox）并维护焦点顺序
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Pure CSS Popovers: A Native Approach Without JavaScript
youtubeKevin Powell7/1/2026
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