<asin>
A mathematical function that calculates the arcsine (inverse sine) of a number. It's used in advanced CSS math to determine angles based on vertical distances in layouts or animations.
Quick example
.item {
/* Calculates a rotation angle based on a ratio */
transform: rotate(calc(asin(0.5)));
}<asin> Browser Support
Widely available Since 2023 92% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2023.
Safe to use without fallbacks.
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