En CSS existen múltiples funciones. Quizás conozcas algunas como url() o rgb(), pero existen muchas más. Estas son todas las funciones CSS que existen. ¿Para qué sirve cada una?
abs()acos()anchor()anchor-size()asin()atan()atan2()attr()blur()brightness()calc()circle()clamp()color()color-mix()conic-gradient()contrast()cos()counter()cubic-bezier()drop-shadow()ellipse()env()exp()format()grayscale()hsl()hsla()hue-rotate()hwb()hypot()if()image-set()inset()invert()lab()lch()light-dark()linear()linear-gradient()local()log()matrix()matrix3d()max()min()minmax()mod()oklab()oklch()opacity()path()perspective()polygon()pow()radial-gradient()random()random-item()ray()rect()rem()repeat()repeating-conic-gradient()repeating-linear-gradient()repeating-radial-gradient()rgb()rgba()rotate()rotate3d()rotateX()rotateY()rotateZ()round()saturate()scale()scale3d()scaleX()scaleY()scaleZ()scroll()sepia()shape()sibling-count()sibling-index()sign()sin()skew()skewX()skewY()sqrt()steps()superellipse()supports()tan()tech()translate()translate3d()translateX()translateY()translateZ()url()var()view()xywh()