Unverified50% confidenceFactExact time
即便弹出层在DOM中与触发按钮分离，键盘焦点在打开时也会正确进入弹出层内部
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Pure CSS Popover Animations: A Complete Zero-JavaScript Guide
youtubeKevin Powell7/1/2026
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