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Inpaint Brush Region
A round brush paints a pulsing mask over a cloud, Generate fill is pressed, grain boils inside the mask only, then a moon resolves in with a feathered edge while the rest stays crisp.
Also known as: inpainting animation, generative fill animation css, ai brush mask edit, replace object with ai.
Paint a maskMasked regionGeneratingFilled
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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
--aia-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--aia-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.