Unverified50% confidenceFactExact time
Intersection Observer 本质是布尔事件系统，无法感知滚动进度或元素距视口的连续状态
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
GSAP in Practice: Build Stunning Landing Page Animations from Scratch
youtubeKevin Powell7/8/2026
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