This is a comprehensive reference for building UI animations with CSS. You get Disney's 12 principles adapted for interfaces, timing guidelines for everything from micro-interactions to page transitions, and a solid library of ready-to-use keyframes covering fades, bounces, scales, and rotations. The easing function examples include Material Design's standard curves and some nice elastic effects. What makes this useful is the specificity: it tells you to use 150-250ms for button hovers with ease, or 200-300ms for modal opens with ease-out, plus it includes Tailwind examples alongside vanilla CSS. It also respects prefers-reduced-motion, which matters for accessibility. Good for both learning animation fundamentals and grabbing production-ready snippets.
npx skills add https://github.com/onewave-ai/claude-skills --skill css-animation-creator