CSS3 animation-timing-function Property


Example

Play an animation with the same speed from beginning to end:

div {
    -webkit-animation-timing-function: linear; /* Chrome, Safari, Opera */
    animation-timing-function: linear;
}

Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The animation-timing-function specifies the speed curve of an animation.

The speed curve defines the TIME an animation uses to change from one set of CSS styles to another.

The speed curve is used to make the changes smoothly.

Default value: ease
Inherited: no
Animatable: no. Read about animatable
Version: CSS3
JavaScript syntax: object.style.animationTimingFunction="linear" Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Numbers followed by -webkit-, -moz-, or -o- specify the first version that worked with a prefix.

Property
animation-timing-function 4.0 -webkit- 10.0 16.0
5.0 -moz-
4.0 -webkit- 15.0 -webkit-
12.1
12.0 -o-

CSS Syntax

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

The animation-timing-function uses a mathematical function, called the Cubic Bezier curve, to make the speed curve. You can use your own values in this function, or use one of the pre-defined values:

Property Values

Value Description Play it
linear The animation has the same speed from start to end Play it »
ease Default value. The animation has a slow start, then fast, before it ends slowly Play it »
ease-in The animation has a slow start Play it »
ease-out The animation has a slow end Play it »
ease-in-out The animation has both a slow start and a slow end Play it »
cubic-bezier(n,n,n,n) Define your own values in the cubic-bezier function
Possible values are numeric values from 0 to 1
initial Sets this property to its default value. Read about initial
inherit Inherits this property from its parent element. Read about inherit

Tip: Try the different values in the Try it Yourself section below.


Examples

More Examples


Example

To better understand the different timing function values;
Here are five different <div> elements with five different values:

/* For Chrome, Safari and Opera */
#div1 {-webkit-animation-timing-function: linear;}
#div2 {-webkit-animation-timing-function: ease;}
#div3 {-webkit-animation-timing-function: ease-in;}
#div4 {-webkit-animation-timing-function: ease-out;}
#div5 {-webkit-animation-timing-function: ease-in-out;}

/* Standard syntax */
#div1 {animation-timing-function: linear;}
#div2 {animation-timing-function: ease;}
#div3 {animation-timing-function: ease-in;}
#div4 {animation-timing-function: ease-out;}
#div5 {animation-timing-function: ease-in-out;}

Try it yourself »

Example

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

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

/* Standard syntax */
#div1 {animation-timing-function: cubic-bezier(0,0,1,1);}
#div2 {animation-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {animation-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {animation-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {animation-timing-function: cubic-bezier(0.42,0,0.58,1);}

Try it yourself »

Related Pages

CSS3 tutorial: CSS3 Animations

HTML DOM reference: animationTimingFunction property



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