This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Chris Coyier
chriscoyier.net
did:plc:xhhcrzsilpamjmz4dvrpt7df
I still think this is a very cool demo.
https://codepen.io/editor/chriscoyier/pen/019a82f5-7fde-72f5-90ab-d23632dd9ca6
random()-ly positioned "stars" split into three groups via :nth-child() fanciness. Each group moves a different amount by just a single @keyframes mapped to a scroll-driven animation timeline. Not hard!
2026-08-01T22:15:17.268Z