What is a cubic-bezier function in CSS?

The cubic-bezier(x1, y1, x2, y2) function defines a cubic Bézier curve used for transition and animation timing. It controls how velocity accelerates and decelerates over the duration.

Can cubic-bezier values exceed 1.0 or be negative?

Yes! While the x coordinates (time) must remain between 0.0 and 1.0, the y coordinates (output progress) can be greater than 1.0 for bouncing/overshoot effects or negative for anticipation recoil.

How do I create custom easing curves in CSS?

By using the cubic-bezier(x1, y1, x2, y2) timing function. Adjusting the two control points alters acceleration and bounce dynamics.

Can I use custom cubic-bezier in Tailwind CSS?

Yes! In Tailwind CSS v3 and v4, use the arbitrary property class syntax: ease-[cubic-bezier(x1,y1,x2,y2)] with no spaces.

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