Guide to Scroll‑Driven Animations with CSS

June 26, 2025

Guide to Scroll‑Driven Animations with CSS

CSS animations can now be linked to user scrolling without any JavaScript — just pure CSS.

1. Three Parts of a Scroll‑Driven Animation

  • Target: the element you animate.
  • Keyframes: defines the animation steps.
  • Timeline: controls animation based on scroll/view, not time.

2. Using scroll() Timeline

Instead of time, the animation progress depends on the user scroll. Example:

footer::after {
  content: "";
  position: fixed;
  bottom: 0;
  left: 0;
  height: 1em;
  width: 100%;
  background: gold;
  animation: progress-expand;
  animation-timeline: scroll();
}

@keyframes progress-expand {
  from { width: 0%; }
  to { width: 100%; }
}

3. Accessibility Tip

Wrap animations with reduced‑motion preference check:

@media not (prefers-reduced-motion) {
  footer::after {
    animation: progress-expand;
    animation-timeline: scroll();
  }
}

4. Advanced: Custom Scroll/View Timelines

Use scroll(nearest block), named timelines, view(), animation-range, and timeline-scope to fine-tune behavior.

Scroll-driven animations now work natively in Safari 26 beta and Chrome 115+, offering smooth, hardware-accelerated UX.

Blog

React Native 0.80 & ExecuTorch: A Powerful Leap into Offline AI for Mobile Apps

Jul 28, 2025

🚀 What’s New in React Native 0.80? The React Native 0.80 release marks a pivotal moment in mobile development. This update not only enhances...

How to Make Your Website Blazing Fast – Step by Step

Jul 30, 2025

Why Performance Is Non-Negotiable In today’s fast-paced world, no one has time to wait for a slow-loading website. On mobile, users abandon...

What’s New in ECMAScript 2025

Jun 30, 2025

What’s New in ECMAScript 2025 On June 25, 2025, Ecma International officially approved ES2025, adding several useful features: 1. 📦 Import At...

Mastering Laravel 12 Conditional Validation

Jul 07, 2025

Mastering Laravel 12 Conditional Validation Laravel 12's validation system is super powerful, and conditional validation makes your forms...

Using useCallback in React: Benefits, Limitations, Best Practices

Jul 31, 2025

The useCallback hook in React is used to return a memoized version of a callback function, so it's only recreated when its dependencies change. The...

Laravel Queue & Job System: From Table Creation to Production Deployment

Jul 01, 2025

🚀 Laravel Queue & Job System We’re gonna walk you through Laravel queues from setup to deploying in production using Supervisor. Step 1...

The Ultimate Managed Hosting Platform