CSS @keyframes Rule

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Example

Make an element move gradually 200px down:

@keyframes mymove {
from {top: 0px;}
to {top: 200px;}
}

Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The @keyframes rule specifies the animation code.

The animation is created by gradually changing from one set of CSS styles to another.

During the animation, you can change the set of CSS styles many times.

Specify when the style change will happen in percent, or with the keywords "from" and "to", which is the same as 0% and 100%. 0% is the beginning of the animation, 100% is when the animation is complete.

Tip: For best browser support, you should always define both the 0% and the 100% selectors.

Note: Use the animation properties to control the appearance of the animation, and also to bind the animation to selectors.

Note: The !important rule is ignored in a keyframe (See last example on this page).

Browser Support

The numbers in the table specifies the first browser version that fully supports the rule.

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

Property
@keyframes	43.0 4.0 -webkit-	10.0	16.0 5.0 -moz-	9.0 4.0 -webkit-	30.0 15.0 -webkit- 12.0 -o-

CSS Syntax

@keyframes animationname { keyframes-selector { css-styles;}}

Property Values

Value	Description
animationname	Required. Defines the name of the animation.
keyframes-selector	Required. Percentage of the animation duration. Legal values: 0-100% from (same as 0%) to (same as 100%) Note: You can have many keyframes-selectors in one animation.
css-styles	Required. One or more legal CSS style properties

Value

Description

animationname

Required. Defines the name of the animation.

keyframes-selector

Required. Percentage of the animation duration.

Legal values:

0-100%
from (same as 0%)
to (same as 100%)

Note: You can have many keyframes-selectors in one animation.

css-styles

Required. One or more legal CSS style properties

More Examples

Example

Add many keyframe selectors in one animation:

@keyframes mymove {
  0%   {top: 0px;}
  25% {top: 200px;}
  50% {top: 100px;}
  75% {top: 200px;}
  100% {top: 0px;}
}

Try it Yourself »

Example

Change many CSS styles in one animation:

@keyframes mymove {
0% {top: 0px; background: red; width: 100px;}
100% {top: 200px; background: yellow; width: 300px;}
}

Try it Yourself »

Example

Many keyframe selectors with many CSS styles:

@keyframes mymove {
0%   {top: 0px; left: 0px; background: red;}
  25% {top: 0px; left: 100px; background: blue;}
  50% {top: 100px; left: 100px; background: yellow;}
75% {top: 100px; left: 0px; background: green;}
100% {top: 0px; left: 0px; background: red;}
}

Try it Yourself »