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Guilloche Security Frame
A banknote rim of five interlaced hairline waves. Two fine gratings sit over it at slightly different pitches, and as one turns slowly the moire bands they make flow around the frame.
Also known as: guilloche pattern css, banknote border css, moire animation css, security print frame.
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Customizing this snippet
- Color: set
--bdr-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--bdr-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.