前端ABC<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no">
<title>qdabc.cn</title>
<style>
body{
background-color: #ccc;
}
.box{
width: 400px;
height: 400px;
margin: 0 auto;
position: relative;
display: flex;
align-items: center;
border-radius: 50%;
overflow: hidden;
-webkit-transition: all 3s;
-webkit-animation: cd 3000ms infinite linear ;
-o-animation: cd 3000ms infinite linear ;
animation: cd 3000ms infinite linear ;
}
@-webkit-keyframes cd {
0% { -webkit-transform: rotate(0deg); }
50%{-webkit-transform:rotate(-180deg) ;}
100% { -webkit-transform: rotate(-360deg); }
}
.l{ width: 200px;height: inherit;background-color: #000; }
.r{ width: 200px;height: inherit;background-color: #fff; }
.c{ width: 200px;height: inherit; position: absolute; margin-left: -100px;left: 50%;top:0;}
.wc{
width: 60px;
height:60px;
border:70px solid #fff;
background-color: #000;
border-radius: 50%;
}
.bc{
width: 60px;
height:60px;
border:70px solid #000;
background-color: #fff;
border-radius: 50%;
}
</style>
</head>
<body>
<div class="box">
<div class="l"></div>
<div class="r"></div>
<div class="c">
<div class="bc"></div>
<div class="wc"></div>
</div>
</div>
</body>
</html>
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