A wall of tiles, each one lighting up as the pointer crosses it and fading out slowly behind, while stray tiles blink on by themselves so the wall never sits still.
Run the real thing here, tune it, then copy the prompt that rebuilds it.
The preview is the shipped loop itself: CSS, SVG or Canvas 2D, a few kilobytes, no WebGL.
Swatches recolour, sliders change density and speed, toggles switch parts on and off. Randomize for a surprise.
A snippet for any page, or a component for Next.js, React, Vue, Astro, WordPress, Shopify or Webflow.
It quotes the loop verbatim with your CONFIG values baked in, plus the integration rules.
Container gets position: relative and overflow: hidden; the background fills it; content sits above.