Premium
A mosaic pool edge lit through moving water. Two layers of caustic light drift in opposite directions over the tiles, so bright cells form, split and reform only inside the rim.
Also known as: water caustics css, pool border animation, swimming pool light css, caustic light border.
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.
--bdr-color on the element or a parent.
Currently previewing #3b82f6.--bdr-size. Every other dimension is in
em, so the whole thing scales together. Currently previewing 16px.transition or animation
shorthand. Staggered delays are relative, so they keep their rhythm.