level 1
<!doctype html>
<html>
<head>
<meta charset="gb2312">
<title>无标题文档</title>
<style type="text/css">
body{ background-color:#CCC}
#pop{ position:fixed; top:20%; left:38%; height:500px; width:500px; border:1px solid #666; border-radius:50%}
.noback{ width:500px; height:500px; background-color:#F90; border-radius:50%; position:relative;}
.poiont{ width:30px; height:30px; position:absolute; top:55px; left:62px; background-color:#F00; border-radius:50%}
.rotation{
-webkit-transform: rotate(360deg);
animation: rotation 3s linear infinite;
-moz-animation: rotation 3s linear infinite;
-webkit-animation: rotation 3s linear infinite;
-o-animation: rotation 3s linear infinite;
}
@-webkit-keyframes rotation{
from {-webkit-transform: rotate(0deg);}
to {-webkit-transform: rotate(360deg);}
}
</style>
</head>
<body>
<div id="pop">
<div class="noback rotation">
<div class="poiont"></div>
</div>
</div>
</body>
</html>
2017年03月14日 08点03分
5