https://developer.chrome.com/blog/scroll-triggered-animations
CSS scroll-triggered animations are coming! | Blog | Chrome for Developers
We have scroll-driven animations. Now, meet scroll-triggered animations.
css scroll triggeredcoming
https://ryanmulligan.dev/blog/scroll-triggered-animations-style-queries/
CSS Scroll-triggered Animations with Style Queries
Combine scroll-driven animations and style queries to trigger an animation sequence powered only by CSS.
css scroll triggeredstyle