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Staggered Reveals with sibling-index()
Five staggers, one function, and no :nth-child ladder anywhere: sibling-index() reads each element's own position in its parent, so rows added or reordered later re-stagger themselves. The list is the reel's code verbatim, animation-delay: calc(sibling-index() * 100ms). The equalizer drives three properties from one call: delay, height through sin(), and hue. Orbit uses the index as geometry rather than timing, rotate(calc(sibling-index() * 30deg)) translateY(-56px) for twelve dots with no coordinates. Grid turns the flat index into coordinates with mod() and round(down), whose sum sweeps a diagonal ripple. Each declaration sits after a plain fallback. Chrome 149+ and Safari 26.5.
animationcssstaggeredlistcustom-propertiesnth-child