web-animation-design

CSS animation easing depends on interaction intent: use ease-out for entering elements, ease-in-out for moving elements, and ease for hover transitions. Keep tooltip and modal durations under 300ms to maintain a fast, natural UI feel.

To prevent jank in web animation design, prioritize animating GPU-friendly properties like transform and opacity. Use will-change to reduce jitter and apply interruptible spring-style reasoning for gesture-like interactions to maintain smooth rendering.

Accessible CSS animations require prefers-reduced-motion fallbacks to disable or minimize movement for sensitive users. Avoid animating keyboard navigation actions and hover states on touch devices to ensure safe interaction across all accessibility contexts.

Yes, the web animation guidance applies to common patterns involving hover, tooltips, popovers, drawers, modals, and microinteractions across UI libraries. It standardizes performance tuning and motion design without requiring specific library dependencies.

Avoid using ease-in-out for elements that are entering or exiting the screen, as it creates a sluggish start and end. Reserve ease-in-out for on-screen movement, applying ease-out for entrances and ease for hover transitions instead.