<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
*{
margin: 0;
padding: 0;
}
.container > div{
float: left;
}
.left{
margin-left: -100%;
width: 200px;
height: 100%;
height: 100vh;
background-color: red;
}
.center{
width: 100%;
height: 100vh;
background-color: pink;
}
.right{
margin-left: -200px;
width: 200px;
height: 100vh;
background-color: blue;
}
.main{
padding: 0 200px;
}
</style>
</head>
<body>
<div class="container">
<div class="center">
<div class="main">
中
</div>
</div>
<div class="left">左</div>
<div class="right">右</div>
</div>
</body>
</html>
