Reference index / 스크롤·드래그·입력 연동
Scroll-triggered Animation
Starting an animation when a specified scroll position is reached.
When to use it
Entrance effects when content enters the viewport.
Caveats and distinctions
Scroll-triggered and scroll-driven animation are different. Avoid excessive input hijacking or making essential navigation depend on motion.
Implementation and classification
UI·UX 모션 / 스크롤·드래그·입력 연동
Sources and verification status
https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Scroll-driven_animations
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