Unverified50% confidenceFactExact time
WHATWG成立于2004年，由Mozilla、Opera、Apple对W3C的HTML规范演进感到失望后组建
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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