*{
	margin: 0;
	padding: 0;
	border: none;
}
#banner{
	width: 100%;
	height:409px;
	background: url(./images/bg3.jpg) repeat;
}
.banner_box{
	width: 1200px;
	height: 409px;
	margin:0 auto;
}
.box_a{
	width: 100%;
	height: 800px;
	background: url(./images/bg1.jpg) repeat;
}
.box1{
	position: relative;
	top: 200px;
	width: 1200px;
	height: 360px;
	margin: 0 auto;
}
.box_b{
	width: 100%;
	height: 800px;
	background: url(./images/bg2.jpg) repeat;
}
.box2{
	position: relative;
	top: 180px;
	width: 1200px;
	height: 800px;
	margin: 0 auto;
}
.clear_box{
	height: 88px;
}