<!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>
.dysjx{
width: 0;
height: 0;
border-left: 100px solid transparent;
border-right: 100px solid transparent;
border-bottom: 100px solid pink ;
}
.zjsjx{
width:0;
height: 0;
border-top: 50px solid transparent;
border-left: 50px solid pink;
border-right: 50px solid transparent;
border-bottom: 50px solid pink;
}
.zsjx{
width:0;
height: 0;
border-left: 100px solid transparent;
border-right: 100px solid transparent;
border-bottom: 100px solid pink;
}
.tx{
width: 50px;
height: 0;
border-top: 0 solid transparent;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 100px solid pink;
}
.bttx{
width:0;
height: 0;
border-top: 80px solid transparent;
border-left: 30px solid pink;
border-right: 70px solid transparent;
border-bottom: 20px solid rgb(227, 247, 149);
}
</style>
</head>
<body>
<div class="dysjx"></div>
<p>等腰三角形</p>
<div class="zjsjx"></div>
<p>直角三角形</p>
<div class="zsjx"></div>
<p>正三角形</p>
<div class="tx"></div>
<p>梯形</p>
<div class="bttx"></div>
<p>变态图形</p>
</body>
</html>
