Scroll-driven animations in pure CSS (no JavaScript)

Description

Scroll animations used to need 100 lines of JavaScript. Now they need three lines of CSS. What's covered: • Show the old way: scroll listener + requestAnimationFrame + math. • Show the new way: animation-timeline: scroll(). • Explain how to bind any keyframe animation to scroll progress. • One real example: a progress bar that fills as you scroll. • Browser support note: Chrome/Edge first, Safari/Firefox catching up. Follow for more CSS-replaces-JavaScript wins. #pixelgridui #css #webdev #frontend #scrollanimation