それを自分で試してみてください - JavaScript Reference event_animation

<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {
   margin: 25px;
   width: 550px;
   height: 100px;
   background: orange;
   position: relative;
   font-size: 25px;
   -webkit-animation-name: mymove; /* Chrome, Safari, Opera */
   -webkit-animation-duration: 5s; /* Chrome, Safari, Opera */
   animation-name: mymove;
   animation-duration: 5s;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
   from {top: 0px;}
   to {top: 200px;}
}

@keyframes mymove {
   from {top: 0px;}
   to {top: 200px;}
}
</style>
</head>
<body>

<p>This example uses the addEventListener() method to attach an "animationstart" event to a DIV element.</p>

<p>The animationName property returns the animation name used in this animation:</p>

<p><strong>Note:</strong> The animationName property is not supported in IE9 and earlier versions.</p>

<div id="myDIV"></div>

<script>
var x = document.getElementById("myDIV");

// Code for Chrome, Safari and Opera
x.addEventListener("webkitAnimationStart", myStartFunction);

// Standard syntax
x.addEventListener("animationstart", myStartFunction);

function myStartFunction(event) {
   this.innerHTML = "The animation-name is: " + event.animationName;
}
</script>

</body>
</html>

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
    from {top: 0px;}
    to {top: 200px;}
}

@keyframes mymove {
    from {top: 0px;}
    to {top: 200px;}
}
</style>
</head>
<body>

<p>This example uses the addEventListener() method to attach an "animationstart" event to a DIV element.</p>

<p>The animationName property returns the animation name used in this animation:</p>

<p><strong>Note:</strong> The animationName property is not supported in IE9 and earlier versions.</p>

// Code for Chrome, Safari and Opera
x.addEventListener("webkitAnimationStart", myStartFunction);

// Standard syntax
x.addEventListener("animationstart", myStartFunction);

function myStartFunction(event) {
    this.innerHTML = "The animation-name is: " + event.animationName;
}
</script>

</body>
</html>