How to Create CSS Scroll-Driven Animations Online
CSS scroll-driven animations let you create elements that animate based on scroll position - without JavaScript. The new scroll-timeline and view-timeline APIs make it possible to trigger animations when elements enter the viewport or as the user scrolls. This guide shows you how to create scroll animations visually and generate production-ready CSS code.
Step 1: Open the Scroll Animations Generator
Visit fixie.tools/scroll-animations in your browser. The tool provides a visual editor for creating scroll-triggered effects with live preview.
Step 2: Choose Animation Timeline Type
Select between Scroll Timeline (animates based on container scroll position 0-100%) or View Timeline (animates as element enters/exits viewport). View timelines are ideal for fade-ins and slide-ups, while scroll timelines work for parallax and progress indicators.
Step 3: Define Animation Keyframes
Set the animation properties you want to change: opacity, transform, scale, color, or any CSS property. Define keyframes at different scroll positions - for example, fade from 0% opacity when entering to 100% when fully visible.
Step 4: Adjust Animation Range
Configure when the animation starts and ends: entry (element entering viewport), cover (element covering viewport), exit (element leaving), or custom percentages. This controls the animation's relationship to scroll position.
Step 5: Preview with Interactive Scroll
Test your animation using the interactive preview panel. Scroll up and down to see how your element animates at different viewport positions. Adjust timing and easing until the effect feels smooth and natural.
Step 6: Copy Generated CSS Code
The tool generates clean CSS code using animation-timeline and animation-range properties. Copy and paste into your stylesheet. The code works in modern browsers (Chrome 115+, Edge 115+) with automatic fallbacks for older browsers.