Sitewright

Spring playground

Three sliders (stiffness, damping, mass) drive a live spring on a ball and a plotted response curve, with presets and the settle time.

What it is for

landing page feature explainer, docs or about page showing how the motion feels

Use it

1 · site.json
"effects": { "components": ["spring-playground"] }
or on the command line
node ~/.claude/skills/sitewright/scripts/scaffold.mjs --config site.json --out ./my-site --components spring-playground
2 · import it
import { SpringPlayground } from '@/components/fx/ui';

Files

  • components/fx/ui/SpringPlayground.tsx
  • components/fx/ui/_m1.ts
  • ui-spring-playground.css styles

Source

Idea from Motion; the code is written for this kit.

Credits and licences: third-party notices.

Accessibility

  • Keyboard. Components in the kit are written to be reached and used with the keyboard. Try it: press Tab inside the preview.
  • Reduced motion. With prefers-reduced-motion on, animation settles to its finished state at once.
  • Touch. Pointer-follow effects are skipped on touch screens; controls stay finger-sized.