.index1 {
	width:790px;
	height:600px;
	text-align:center;
	background-image:url(graphic/index_coll.jpg);
	background-repeat:no-repeat;
	background-position:center;
}
.box_left_top {
	margin:15px;
	width:364px;
	height:269px;
	border-left:solid 1px red;
	border-top:black solid 1px;
	float:left;
}
.box_right_top {
	margin:15px;
	width:364px;
	height:269px;
	border-right:solid 1px red;
	border-top:black solid 1px;
	float:left;
}
.box_left_bottom {
	margin:15px;
	width:364px;
	height:269px;
	text-align:left;
	border-left:solid 1px yellow;
	border-bottom:#090 solid 1px;
	float:left;
}
.box_right_bottom {
	margin:15px;
	width:364px;
	height:269px;
	border-right:solid 1px yellow;
	border-bottom:#090 solid 1px;
	float:left;
}
.box1 {
	width:320px;
	margin-top:10px;
	padding:20px;
	padding-top:0px;
	text-align:left;
}
.box2 {
	width:320px;
	margin-top:10px;
	padding:20px;
	padding-top:0px;
	text-align:right;
}
.box3 {
	width:320px;
	margin-top:70px;
	padding:20px;
	padding-bottom:5px;
	text-align:left;
}
.box4 {
	width:320px;
	margin-top:80px;
	padding:20px;
	padding-bottom:5px;
	text-align:right;
}