.btm_line{
	padding-bottom: 15px;
	border-bottom: dotted 1px #999;
}
.btn_15_360{
	margin: 15px 0 0 360px;
}
.box_a{
	width: 360px;
	float: left;
	margin-right: 20px;
	text-align: left;
}
.box_b{
	width: 360px;
	float: right;
	text-align: left;
}