Reveal-up scroll animation

Production-grade fade + lift on enter-view. Respects prefers-reduced-motion. No library. 0.5 KB.

What’s in it

An IntersectionObserver-based reveal animation. Elements with [data-reveal] fade in and translate up 20px on entering the viewport. The observer disconnects after triggering; no continuous JS cost.

Performance

0.5 KB minified. Runs once per element. Uses transform + opacity (composited; no layout). Honours prefers-reduced-motion by skipping the animation entirely.

License

MIT.