Origami Corner Fold: CSS Keyframe Animation

Origami Corner Fold

A colored paper square folds its four corners into the center one after another on diagonal hinges, showing the white back, then unfolds them in reverse order.

Also known as: css origami animation, paper fold corners css, blintz fold animation.

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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