<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>布局</title>
<style type="text/css">
.box{
background-color: #1dff83;
width: 560px;
height: 560px;
padding-top: 40px;
padding-left: 40px;
}
.box .a{
width: 300px;
height: 100px;
background-color: #ff5917;
margin-bottom: 10px;
}
.box .b{
width: 120px;
height: 200px;
background-color: #ecff3a;
float: left;
margin-right: 60px;
}
.c{
width: 120px;
height: 200px;
background-color: green;
float: left;
margin-bottom: 15px;
}
.d{
width: 300px;
height: 100px;
background-color: #35ffff;
clear: both;
}
</style>
</head>
<body>
<div class="box">
<div class="a">
</div>
<div class="b">
</div>
<div class="c">
</div>
<div class="d">
</div>
</div>
</body>
</html>
