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A neon sign on its own dark backplate hangs above the button. On hover the tube stutters alight, then holds while its glow spills across the plate; leaving drops the light at once.
Also known as: neon sign tooltip css, neon flicker text, glowing sign hover, neon light tooltip.
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.
--tip-color on the element or a parent.
Currently previewing #3b82f6.--tip-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.