Beginning CSS3 pp 475-490 | Cite as

Animating with CSS Keyframes

  • David Powers


The CSS transitions covered in the preceding chapter create simple animations that smooth changes in an element’s properties from one state to another. But they’re limited to the transition between two points. The only influence you have over what happens between those points lies in the choice of timing function. The CSS Animations module ( goes much further by allowing you to define keyframes that specify what an element’s properties should be at each stage of the animation. As with transitions, it’s left up to the browser to work out how to animate a smooth change from one keyframe to the next. So, you need to create keyframes only for significant changes. But you have finer control over reverse transitions, and you can specify how many times the animation should run or make it repeat endlessly.


Timing Function Original Position Preceding Chapter Default Class Style Rule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© David Powers 2012

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  • David Powers

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