标签：
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
.yxdh{
width:200px;
height:200px;
border: 1px solid red;
background-color: red;
transform:translate(400px,0px);
-webkit-transform:translate(400px,0px);
border-radius: 100px;
-moz-border-radius: 100px;
-webkit-border-radius: 100px;
animation-name:dh;
animation-duration: 1s;
animation-iteration-count: infinite;
animation-timing-function: ease-in-out;
-webkit-animation-name:dh;
-webkit-animation-duration: 1s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-timing-function: ease-in-out;
margin:100px auto;
}
@keyframes dh {
0%{
transform: scale(0);
opacity:100;
-webkit-transform: scale(0);
}
100%{
transform: scale(1);
opacity: 0;
-webkit-transform: scale(1);
}
}
@-webkit-keyframes dh {
0%{
transform: scale(0);
opacity: 100;
-webkit-transform: scale(0);
}
100%{
transform: scale(1);
opacity: 0;
-webkit-transform: scale(1);
}
}
</style>
</head>
<body>
<div class="yxdh"></div>
</body>
</html>
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原文地址：http://www.cnblogs.com/yyt-caroline/p/4909997.html
