#body3{
	width: 100%;overflow: hidden;min-width: 1400px;
	margin: 0 auto;
	background-color: #676857;
}
.body3_bg{
	width: 1200px;height: auto;margin: 0 auto;
}
.body3_name{
	float: left;width: 30px;margin: 10px;
	font-size: 30px;color: #BCBCBC;
	writing-mode: vertical-lr;
	writing-mode: tb-lr;
}

.box_b{
	position:relative;overflow: hidden;
	margin: auto 0;width: 1150px;height: 220px;
}
.box_b ul{
	position:absolute;
	left:0;
	top:0
}
.box_b .btn span{
	position: absolute;
	top: 50%;
	margin-top: -110px;
	width:40px;
	height: 220px;
	font-size: 40px;
	color: #8C8989;
	line-height: 220px;
	background: rgba(103,103,103,0.10);
	border-radius:100%; 
	cursor: pointer;
} 
.box_b .btn span:hover{
	color: #fff;
	background: rgba(0,0,0,.3);
} 
.box_b .btn span.prev{
	text-align: right;left: -20px;
} 
.box_b .btn span.next{
	text-align: left;right: -20px;
} 
.box_b ul li {
	float:left;
	width:220px;
	height:220px;
	padding-left: 10px;
}