6XC

CSS Transition Generator

Build a transition — property, duration, timing function and delay — and test it live with one click.

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The transition Property

Syntax: transition: property duration timing-function delay. It animates changes triggered by hover, focus or class toggles. The timing function defines the feel: ease is the natural default, ease-out suits entrances, and custom cubic-bezier curves create springy overshoots. Press the test button to watch your settings in action.

Frequently Asked Questions

Which properties are cheap to animate?

transform and opacity — the browser can composite them on the GPU without relayout. Animating width, height or top forces layout every frame and can stutter.

What is a good default duration?

150-250 ms for small UI feedback (buttons, hovers) and 300-500 ms for larger movements. Above ~700 ms interfaces start feeling sluggish.

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