Unverified50% confidenceSolutionExact time
CSS规则书写顺序必须正确：先写关闭状态，再写打开状态，最后写@starting-style过渡起点，否则@starting-style不会生效
1
Sources
50%
Confidence
Long-term
Relevance
8/12/2026
First Seen
Sources
Related Claims
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