What is the difference between ease in and ease out

Learn more. Asked 9 years, 8 months ago. Active 6 years, 9 months ago. Viewed 83k times. Improve this question. I realise I'm replying to a very old comment, but I need to point out for the benifit of anyone else reading this that w3schools is not the source of the standard read w3fools. The correct link is w3. Add a comment. Active Oldest Votes. Finally, here's a great description of the cubic-bezier syntax, but it's usually not necessary unless you want some very precise effects.

Easy Ease vs. You can simply understand the concept of easing when you turn to the graph editor, then try all the modes and you will notice the difference. Thank you all awesome friends. And Yeah, Esko, that tut is super helpful. Generally speaking, you should avoid linear motion. See a linear animation.

Easing out causes the animation to start more quickly than linear ones, and it also has deceleration at the end. Easing out is typically the best for user interface work, because the fast start gives your animations a feeling of responsiveness, while still allowing for a natural slowdown at the end.

See an ease-out animation. There are many ways to achieve an ease out effect, but the simplest is the ease-out keyword in CSS:.

This kind of animation is like a heavy stone falling, where it starts slowly and hits the ground quickly with a deadening thump. From an interaction point of view, however, ease-ins can feel a little unusual because of their abrupt end; things that move in the real world tend to decelerate rather than simply stopping suddenly. Ease-ins also have the detrimental effect of feeling sluggish when starting, which negatively impacts the perception of responsiveness in your site or app.

See an ease-in animation. To use an ease-in animation, similarly to ease-out and linear animations, you can use its keyword:. Easing both in and out is akin to a car accelerating and decelerating and, used judiciously, can provide a more dramatic effect than just easing out.

Do not use an overly long animation duration, because of the sluggishness of an ease-in start to the animation. Something in the range of ms is typically suitable, but the exact number depends heavily on the feel of your project. That said, because of the slow start, fast middle, and slow end, there is increased contrast in the animation, which can be quite satisfying for users.

See an ease-in-out animation. To get an ease-in-out animation, you can use the ease-in-out CSS keyword:. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.

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