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CSS Properties

animation
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CSS3 transition-timing-function Property

CSS Reference Complete CSS Reference

Example

A transition effect with the same speed from start to end:

transition-timing-function: linear;
-moz-transition-timing-function: linear; /* Firefox 4 */
-webkit-transition-timing-function: linear; /* Safari and Chrome */
-o-transition-timing-function: linear; /* Opera */

Try it yourself »

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The transition-timing-function property is not supported in any browsers.

Firefox 4 supports an alternative, the -moz-transition-timing-function property.

Safari and Chrome support an alternative, the -webkit-transition-timing-function property.

Opera support an alternative, the -o-transition-timing-function property.

Definition and Usage

The transition-timing-function property specifies the speed curve of the transition effect.

This property allows a transition effect to change speed over its duration.

Default value: ease
Inherited: no
Version: CSS3
JavaScript syntax: object.style.transitionTimingFunction="linear"

Syntax

transition-timing-function: linear|ease|ease-in|ease-out|ease-in-out|cubic-bezier(n,n,n,n);

Value Description
linear Specifies a transition effect with the same speed from start to end (equivalent to cubic-bezier(0,0,1,1))
ease Specifies a transition effect with a slow start, then fast, then end slowly (equivalent to cubic-bezier(0.25,0.1,0.25,1))
ease-in Specifies a transition effect with a slow start (equivalent to cubic-bezier(0.42,0,1,1))
ease-out Specifies a transition effect with a slow end (equivalent to cubic-bezier(0,0,0.58,1))
ease-in-out Specifies a transition effect with a slow start and end (equivalent to cubic-bezier(0.42,0,0.58,1))
cubic-bezier(n,n,n,n) Define your own values in the cubic-bezier function. Possible values are numeric values from 0 to 1

Tip: Try the different values in the examples below to understand how it works!

Examples

Try it Yourself - Examples


Example

To better understand the different function values: Here are five different div elements with five different values:

#div1 {transition-timing-function: linear;}
#div2 {transition-timing-function: ease;}
#div3 {transition-timing-function: ease-in;}
#div4 {transition-timing-function: ease-out;}
#div5 {transition-timing-function: ease-in-out;}
/* Firefox 4: */
#div1 {-moz-transition-timing-function: linear;}
#div2 {-moz-transition-timing-function: ease;}
#div3 {-moz-transition-timing-function: ease-in;}
#div4 {-moz-transition-timing-function: ease-out;}
#div5 {-moz-transition-timing-function: ease-in-out;}
/* Safari and Chrome: */
#div1 {-webkit-transition-timing-function: linear;}
#div2 {-webkit-transition-timing-function: ease;}
#div3 {-webkit-transition-timing-function: ease-in;}
#div4 {-webkit-transition-timing-function: ease-out;}
#div5 {-webkit-transition-timing-function: ease-in-out;}
/* Opera: */
#div1 {-o-transition-timing-function: linear;}
#div2 {-o-transition-timing-function: ease;}
#div3 {-o-transition-timing-function: ease-in;}
#div4 {-o-transition-timing-function: ease-out;}
#div5 {-o-transition-timing-function: ease-in-out;}

Try it yourself »

Example

Same as the example above, but the speed curves are specified with the cubic-bezier function:

#div1 {transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Firefox 4: */
#div1 {-moz-transition-timing-function: cubic-bezier(0,0,0.25,1);}
#div2 {-moz-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-moz-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-moz-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-moz-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Safari and Chrome: */
#div1 {-webkit-transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-webkit-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-webkit-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-webkit-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-webkit-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Opera: */
#div1 {-o-transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-o-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-o-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-o-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-o-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}

Try it yourself »

CSS Reference Complete CSS Reference
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