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An accordion bellows between two end plates. Checking opens each pleat on its fold line in turn from the fixed end, pushing the far plate across, with pleats shaded by angle and accent lining inside.
Also known as: accordion toggle switch, bellows animation css, folding pleats toggle, 3d accordion fold switch.
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.
--tgl-color on the element or a parent.
Currently previewing #3b82f6.--tgl-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.