Unverified50% confidenceFactExact time
CSS的:checked伪类早在CSS2.1规范中就已被定义，用于匹配处于选中状态的表单控件（checkbox和radio）
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
No JS Required: How a Pure CSS Adventure Game Works
youtubeKevin Powell6/27/2026
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