Premium
Each radio is a small sun. Checking slides the moon to totality, a diamond ring flashes, then the corona and streamers bloom. Unchecking pulls the moon back to a thin crescent.
Also known as: eclipse radio button, solar eclipse radio css, corona glow radio, moon sun radio button.
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.
--rad-color on the element or a parent.
Currently previewing #3b82f6.--rad-size. Every other dimension is in
em, so the whole thing scales together. Currently previewing 18px.transition or animation
shorthand. Staggered delays are relative, so they keep their rhythm.