.content_bg{
	background: url(content_bg.jpg) center repeat-y;
	overflow: hidden;
	margin-top: -5px;
	background-size:100% ;
}
.content{
	width: 1440px;
	margin: 0 auto;
}
 @media screen and (max-width: 1100px) {
    .content{
		width: 100%;
	}
    }
.left{
	float: left;
}
.right{
	float: right;
}
.content_01_box{
	margin-top: 40px;
	overflow: hidden;
}
.content_02_box{
	margin-top: 20px;
	overflow: hidden;
	margin-bottom: 40px;
}
.content_01{
	margin-right: 12%;
}
.content_02{
	margin-left: 12%;
}