Double Helix Turn: CSS Keyframe Animation

Double Helix Turn

Two strands of twelve dots turn about the helix axis, half a turn apart, with base-pair rungs that foreshorten in 3D. Dots on the near side grow and brighten.

Also known as: css dna helix animation, double helix css, rotating dna strand, 3d helix loader.

Color Base size 16px Dark background

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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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