Frosted glass
A translucent pane over slowly moving color.
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Caustic Glass Block
A thick glass block on a pale surface casts a long shadow, and inside the shadow bright caustic lines from the refracted light dance slowly, tinted by the accent. Frosted top, clear sides.
Also known as: css caustics, glass caustics animation, glass paperweight css, light refraction shadow css.
Optic blockLead free crystal, 60 mm
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Unlock the HTML and CSS
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.
Customizing this snippet
- Color: set
--gls-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--gls-size. Every other dimension is inem, so the whole thing scales together. Currently previewing16px. - Speed: change the duration on the
transitionoranimationshorthand. Staggered delays are relative, so they keep their rhythm. - Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.