.list_a {
	width: 154px;
	height: 28px;
	text-align: left;
	margin-left:43px;
	position:relative;
}

.list_b {
	width: 154px;
	height: 28px;
	text-align: left;
	margin-left:40px;
	background-image:url(../image/mian/s6.png);
}

.x_s{
	height:20px;
	width:154px;
	padding-left:5px;
	padding-top: 3px;
}