<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
}
body,html{
height:100%;
}
.left{
width:200px;
height:80%;
background:rgba(0,0,255,0.5);
float:left;
}
.right{
width:200px;
height:80%;
background:rgba(255,255,0,0.5);
float:right;
}
.center{
height:100%;
background:pink url(./images/bg.jpg);
/* 用padding把 center-con挤到中间 */
padding:0 200px;
}
.center-con{
height:100%;
background:#ccc;
}
</style>
</head>
<body>
<div class="left"></div>
<div class="right"></div>
<div class="center">
<div class="center-con"></div>
</div>
</body>
</html>
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