CSS Transition Previewer
Compare built-in and custom easing functions side-by-side. Preview and generate CSS transitions with perfect timing.
linearConstant speed
0% → 100% evenly
easeSlow, fast, slow
Default easing
ease-inSlow start
Accelerates
ease-outFast start
Decelerates
ease-in-outSlow both ends
Accelerates then decelerates
all 300ms ease-in-out 0ms
.element {
transition: all 300ms ease-in-out 0ms;
}About CSS Transitions
CSS transitions allow you to smoothly interpolate between CSS property values over a specified duration. They're essential for creating polished, professional user interfaces with smooth hover effects, state changes, and animations.
The transition shorthand property accepts four values: property, duration, timing function (easing), and delay. The timing function controls the rate of change during the transition.
Understanding Cubic Bezier
Cubic bezier curves define custom easing functions using four control points: P0(0,0), P1(x1,y1), P2(x2,y2), and P3(1,1). The first and last points are fixed, so you only control P1 and P2.
Create bounce or elastic effects that overshoot the target value
Create smooth acceleration/deceleration without overshooting
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