Premium
A cutaway hairline engine: four pistons ride their con rods on a turning crankshaft in the 1-3-4-2 firing order, and an accent spark flashes in each cylinder at top dead centre.
Also known as: engine animation css, piston animation, crankshaft animation, isometric engine.
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.
--hln-color on the element or a parent.
Currently previewing #3b82f6.--hln-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.