body{
	padding: 20px;
	font-family: 'Hiragino Sans GB', 'Microsoft Yahei', '微软雅黑', Arial, sans-serif;
}
.main,.left,.right,.middle{
	border: 1px solid #999;
	background-color: white;
	padding: 20px;
}
.main{
	margin: 0 auto;
	overflow: auto;
	background-color: #eee;
	min-width: 300px
}
.left{
	width: 160px;
	float: left;
}
.left .logo{
	float: left;
}
.left .leftContent{
	margin-left: 100px
}
.leftContent h1{
	font-size: 13px;
	text-align: center;
	margin: 0
}
.right{
	width:80px;
	float: right;
}
.middle{
	margin-left: 220px;
	margin-right:140px;
}
@media screen and (max-width: 700px) {
	.right{
		width:auto;
		float: left;
		clear: both;
		margin: 10px 0
	}
	.middle{
		clear: both;
		margin-left: 0;
		margin-right: 0
	}
}