AI CSS Animations

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Gliding Focus Ring

One focus ring is shared by a whole sign-up form. Tab or hover between fields and it glides and resizes to the active one, its glow trailing a few frames behind.

Also known as: animated focus ring css, moving focus indicator, form focus ring transition, shared focus outline css.

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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 --bdr-color on the element or a parent. Currently previewing #3b82f6.
  • Base size: set --bdr-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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