Premium
A 3 by 3 sliding puzzle with one empty slot. Checking slides three tiles in turn along the gap until the scrambled pieces line up into the tick and the board lights in the accent.
Also known as: sliding puzzle checkbox, 15 puzzle animation css, tile puzzle toggle, puzzle checkbox.
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.