javascript做的动画效果，在完成后可以获得一个回调通知（callback）
那么，越来越多的css3动画效果，有没有办法获得类似这种的通知呢？
解决方案
1.transition
可以了解 transitionend 事件。
W3C CSS Transitions Draft：http://www.w3.org/TR/css3-transitions...
The ‘transitionend’ event occurs at the completion of the transition. In the case where a transition is removed before completion, such as if the transition-property is removed, then the event will not fire.
Bubbles: Yes
Cancelable: Yes
Context Info: propertyName, elapsedTime
demo在此。http://jsfiddle.net/QBFtH/1/
2.animation动画
可以了解 animationend 事件。
W3C CSS Animation Events：http://www.w3.org/TR/css3-animations/...
http://developer.apple.com/library/sa...
The ‘animationend’ event occurs when the animation finishes.
Bubbles: Yes
Cancelable: No
Context Info: animationName, elapsedTime