AI CSS Animations

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Vernier Caliper Measure

A caliper jaw closes on a small ball and its vernier slides along; when it stops, one vernier tick lines up with the main scale and lights. The jaw backs off and the ball springs to a new size.

Also known as: caliper animation css, measuring loader, vernier scale animation, precision measurement loader.

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Customizing this loader

  • Color: set --ldr-color on the element or a parent. Currently previewing #3b82f6.
  • Size: set --ldr-size. Every dimension in the snippet is derived from it. Currently previewing 64px.
  • Speed: change the duration on the animation shorthand. Delays on the children are relative, so they keep their rhythm.
  • Accessibility: the root carries role="status" and an aria-label so screen readers announce the wait. The reduced-motion rule at the end slows the animation for users who asked for less motion.

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