Unverified50% confidenceSolutionExact time
requestAnimationFrame的hack有效是因为浏览器的样式计算和布局是批量处理的，将第二次DOM修改推迟到下一帧可强制先处理display变更再检测opacity变化启动过渡
1
Sources
50%
Confidence
Long-term
Relevance
8/13/2026
First Seen
Sources
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