Unverified50% confidenceFactExact time
触发弹出层的按钮会自动成为它的隐式锚点（implicit anchor）
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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