Beginning CSS3

CHAPTER 21

Animating with CSS Keyframes

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 (http://dev.w3.org/csswg/css3-animations/) 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 ...