A guide to Scroll-driven Animations with just CSS

CSS scroll-driven animations allow developers to create animations that respond to user scrolling without JavaScript. The feature uses animation-timeline property with scroll() and view() functions to control when animations trigger. Scroll() timelines activate during any scrolling, while view() timelines activate when elements enter the viewport. The guide covers creating progress bars and sliding image effects, emphasizing accessibility considerations with prefers-reduced-motion media queries. Animation-range property controls when animations start and stop within the timeline. The feature is available in Safari 26 beta and represents a significant advancement in CSS animation capabilities.