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Day Night Terminator
A warm dusk line sweeps across the card from day sky to night sky and back to day, and small city lights along the border switch on one by one as the dark side reaches them.
Also known as: day night border css, sunset card animation, city lights border, day to night transition.
Dusk
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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.