.seihin-over {
	width: 100%;
	margin: 0 0 0 0;
	padding: 0;
}
.seihin-3over4 {
	float:left;
	width: 542px;
	margin: 10px 0 0 0;
	padding: 0;
	text-align:left;
	vertical-align: top;
}
.seihin-1over4 {
	float:left;
	width: 160px;
	margin: 10px 0 10px 0;
	padding: 5px;
	text-align:center;
	vertical-align: top;
	background-color:#eeeeee;
	height:380px;
}
.seihin-both {
	clear:both;
}