利用css3画出太极图

利用css画出太极图

<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>
    太极图
</title><style>*{
            margin:0 auto;
        }
        body{
            background-color: rgb(101, 124, 239);
        }
        .box{
            width:400px;
            height:400px;
            border-radius: 50%;
            border-left: 1px solid #000;
            position: relative;
            margin-top: 200px;
            animation: xz 3s linear infinite;
        }
        @keyframes xz {
            0%{
                transform: rotate(0deg);
            }
            100%{
                transform: rotate(360deg);
            }
        }
        .box:hover{
            animation-play-state: paused;
        }
        .box:after{
            content:"";
            width:200px;
            height:400px;
            background-color: #000;
            display:block;
            border-top-left-radius: 200px;
            border-bottom-left-radius: 200px;
            position: absolute;
            top: 0;
            left: 0;
        }
        .box::before{
            content:"";
            width:200px;
            height:400px;
            background-color: #fff;
            display:block;
            border-top-right-radius: 200px;
            border-bottom-right-radius: 200px;
            position: absolute;
            top: 0;
            right: 0;
        }
        .left{
            width: 200px;
            height: 200px;
            border-radius: 100%;
            background-color: #000;
            position: absolute;
            top: 0;
            left: 100px;
        }
        .right{
            width: 200px;
            height: 200px;
            border-radius: 100%;
            background-color: #fff;
            position: absolute;
            top: 200px;
            z-index: 2;
            right: 100px;
        }
        .left::after{
            content:"";
            display:block;
            width: 50px;
            height: 50px;
            background-color: #fff;
            position: absolute;
            top: 75px;
            left: 100px;
            border-radius: 100%;
        }
        .right::after{
            content:"";
            display:block;
            width: 50px;
            height: 50px;
            background-color: #000;
            position: absolute;
            top: 75px;
            left: 100px;
            border-radius: 100%;
        }</style>
<div class="box">
    <div class="left"></div>
    <div class="right"></div>
</div><!--!doctype-->