都是基于边框属性做出的图型
<!DOCTYPE html>
<html lang="en">
<head>
<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>Document</title>
<style>
.max>div{
display: inline-block;
margin-right: 100px;
vertical-align: bottom;
}
.box{
width: 20px;
height: 20px;
border-top:100px solid transparent ;
border-left:100px solid transparent ;
border-right:100px solid transparent ;
border-bottom:100px solid black ;
}
.trigon{
width: 0px;
height: 0px;
border-top:100px solid transparent ;
border-left:100px solid transparent ;
border-right:100px solid transparent ;
border-bottom:100px solid black ;
}
.round{
width: 100px;
height: 100px;
background-color: black;
border-radius: 50%;
}
.oval {
width: 200px;
height: 100px;
background-color: black;
border-radius: 50%;
}
.sector {
width:0px;
height:0px;
border-top:100px solid transparent ;
border-left:100px solid transparent ;
border-right:100px solid transparent ;
border-bottom:100px solid black ;
border-radius: 50%;
}
</style>
</head>
<body>
<div class="max">
<div class="box"></div>
<div class="trigon"></div>
<div class="round"></div>
<div class="oval"></div>
<div class="sector"></div>
</div>
</body>
</html>
