Tutorials References Exercises Videos Menu
Create Website Get Certified Upgrade

CSS Reference

CSS Reference CSS Browser Support CSS Selectors CSS Functions CSS Reference Aural CSS Web Safe Fonts CSS Fallback Fonts CSS Animatable CSS Units CSS PX-EM Converter CSS Colors CSS Color Values CSS Default Values CSS Entities

CSS Properties

accent-color align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function aspect-ratio backdrop-filter backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-position-x background-position-y background-repeat background-size block-size border border-block border-block-color border-block-end-color border-block-end-style border-block-end-width border-block-start-color border-block-start-style border-block-start-width border-block-style border-block-width border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-end-end-radius border-end-start-radius border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-width border-inline border-inline-color border-inline-end-color border-inline-end-style border-inline-end-width border-inline-start-color border-inline-start-style border-inline-start-width border-inline-style border-inline-width border-left border-left-color border-left-style border-left-width border-radius border-right border-right-color border-right-style border-right-width border-spacing border-start-end-radius border-start-start-radius border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-decoration-break box-reflect box-shadow box-sizing break-after break-before break-inside caption-side caret-color @charset clear clip clip-path color column-count column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns content counter-increment counter-reset cursor direction display empty-cells filter flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-feature-settings font-kerning font-size font-size-adjust font-stretch font-style font-variant font-variant-caps font-weight gap grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-gap grid-column-start grid-gap grid-row grid-row-end grid-row-gap grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens image-rendering @import inline-size inset inset-block inset-block-end inset-block-start inset-inline inset-inline-end inset-inline-start isolation justify-content @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-block margin-block-end margin-block-start margin-bottom margin-inline margin-inline-end margin-inline-start margin-left margin-right margin-top mask-image mask-mode mask-origin mask-position mask-repeat mask-size max-height max-width @media max-block-size max-inline-size min-block-size min-inline-size min-height min-width mix-blend-mode object-fit object-position opacity order orphans outline outline-color outline-offset outline-style outline-width overflow overflow-anchor overflow-wrap overflow-x overflow-y padding padding-block padding-block-end padding-block-start padding-bottom padding-inline padding-inline-end padding-inline-start padding-left padding-right padding-top page-break-after page-break-before page-break-inside paint-order perspective perspective-origin pointer-events position quotes resize right rotate row-gap scale scroll-behavior scroll-margin scroll-margin-block scroll-margin-block-end scroll-margin-block-start scroll-margin-bottom scroll-margin-inline scroll-margin-inline-end scroll-margin-inline-start scroll-margin-left scroll-margin-right scroll-margin-top scroll-padding scroll-padding-block scroll-padding-block-end scroll-padding-block-start scroll-padding-bottom scroll-padding-inline scroll-padding-inline-end scroll-padding-inline-start scroll-padding-left scroll-padding-right scroll-padding-top scroll-snap-align scroll-snap-stop scroll-snap-type tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-decoration-thickness text-indent text-justify text-orientation text-overflow text-shadow text-transform top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function translate unicode-bidi user-select vertical-align visibility white-space widows width word-break word-spacing word-wrap writing-mode z-index



CSS @keyframes Rule


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

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 »

Example

Note: The !important rule is ignored in a keyframe:

@keyframes myexample {
  from {top: 0px;}
  50%  {top: 100px !important;} /* ignored */
  to   {top: 200px;}
}
Try it Yourself »

Related Pages

CSS tutorial: CSS Animations