Premium
A serif headline on a paper card. Checking draws a chisel tip highlighter stroke behind it from left to right, with a wavering edge and a darker start. Unchecking lifts it off from the right.
Also known as: highlighter toggle, highlight text animation css, marker swipe switch, highlight toggle.
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.