我咋感觉画的不太像啊，哈哈哈哈哈哈哈哈哈
凑合看吧，略略略
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
.aa{
height: 500px;
width: 500px;
border: 1px solid black;
border-radius: 250px;
overflow: hidden;
}
.bb{
width: 500px;
height: 250px;
background: black;
position: relative;
}
.cc{
background: white;
width: 250px;
height: 250px;
border-radius: 125px;
position: absolute;
top: 125px;
}
.dd{
background: black;
width: 250px;
height: 250px;
border-radius: 125px;
position: relative;
left: 250px;
top: -125px;
}
.ee{
background: black;
border-radius: 50px;
width: 100px;
height: 100px;
border-radius: 50px;
position: relative;
left: 75px;
top: 210px;
}
.ff{
width: 100px;
height: 100px;
border-radius: 50px;
background: white;
position: relative;
left: 72.5px;
top:72.5px;
}
</style>
</head>
<body>
<div class="aa">
<div class="bb">
<div class="cc">
</div>
<div class="ee">
</div>
</div>
<div class="dd">
<div class="ff">
</div>
</div>
</div>
</body>
</html>