AI CSS Animations

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Streak Flame Ignite

A spark falls onto a wick, a flame grows from layered blobs and keeps flickering, and the streak count beside it drops from 6 to 7 on a split flap card that settles with a small bounce.

Also known as: streak animation css, duolingo streak animation, flame animation css, daily streak counter animation.

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Everything you see above is live. Basic and Pro include every premium piece, with the HTML and CSS ready to copy, plus the Tailwind version where there is one and Motions in Claude Code on Pro.

Customizing this snippet

  • Color: set --kfa-color on the element or a parent. Currently previewing #3b82f6.
  • Base size: set --kfa-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 16px.
  • Speed: change the duration on the transition or animation shorthand. Staggered delays are relative, so they keep their rhythm.
  • Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.

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