Frosted glass
A translucent pane over slowly moving color.
Premium
A spatial alert: the app window sinks back and dims while a glass alert comes forward from depth and settles with a slight overshoot, then retreats as the window returns. Hover pauses it.
Also known as: visionos alert css, spatial modal dialog css, glass alert animation, modal push back depth css.
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.
--gls-color on the element or a parent.
Currently previewing #3b82f6.--gls-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.