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Four crossword cells beside a clue. Checking drops D, O, N and E into the cells one after another, each with a small ink press, and the clue number turns the accent. Unchecking erases right to left.
Also known as: crossword checkbox, letter tiles checkbox animation, word puzzle checkbox css, done letters animation.
Premium
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.
--chk-color on the element or a parent.
Currently previewing #3b82f6.--chk-size. Every other dimension is in
em, so the whole thing scales together. Currently previewing 24px.transition or animation
shorthand. Staggered delays are relative, so they keep their rhythm.