div.main_box {
	
}

div.main_box div.top {
	background-image:url('../images/top_box.png');
	width: 900px;
	height: 5px;
}
div.main_box div.middle {
	background-image:url('../images/top_box.png');
	width: 858px;
	border-right: 1px solid #999999;
	border-left: 1px solid #999999;
	background: #f1f1f1;
	padding: 20px 20px 20px 20px;
}

div.main_box div.bottom {
	background-image:url('../images/bottom_box.png');
	width: 900px;
	height: 5px;
}