<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
.box{
position: relative;
width: 300px;
height: 300px;
border: 5px solid deepskyblue;
border-radius: 50%;
}
.box i{
display: block;
width: 300px;
height: 300px;
position: absolute;
left: -10px;
top: -10px;
border-radius: 50%;
border: 10px solid transparent;
/*旋轉*/
animation:circleRoate 10s ;
animation-timing-function:linear;
}
.box i span{
position: absolute;
left: 239px;
top: 24px;
width: 10px;
height: 10px;
border-radius: 50%;
background: dodgerblue;
}
@keyframes circleRoate{
from{transform: rotate(0deg) infinite;}
to{transform: rotate(360deg);}
}
</style>
</head>
<body>
<div class="box">
<i><span></span></i>
</div>
</body>
</html>
