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Direction Aware Fill Button
Four triangular edge zones remember the side the cursor came in from, so the accent fill sweeps in from that edge and the label inverts letter by letter as the fill edge passes it.
Also known as: direction aware hover css, fill from cursor direction, hover fill from entry side, directional hover button.
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Customizing this snippet
- Color: set
--btn-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--btn-size. Every other dimension is inem, so the whole thing scales together. Currently previewing18px. - 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.