*{
	margin: 0;
	padding: 0;
}
.slide{
	max-width: 100%;
	margin-top: 51px;
	position: relative;
	z-index: 1;
	overflow: hidden;
}
.slide ul{
	width: 10000%;
	list-style-type: none;
}
.next_btn{
	position: absolute;
	width: 45px;
	height: 45px;
	margin-right: 30px;
	margin-top: -45px;
	line-height: 45px;
	text-align: center;
	vertical-align: middle;
	right: 5px;
	top: 50%;
	color: #fff;
	font-family: arial;
	font-size: 20px;
	font-weight: bold;
	display: inline-block;
	cursor: pointer;
	font-family: "宋体";
}
.prev_btn{
	margin-top: -45px;
	position: absolute;
	width: 45px;
	height: 45px;
	line-height: 45px;
	text-align: center;
	vertical-align: middle;
	left: 5px;
	top: 50%;
	color: #fff;
	font-family: "宋体";
	font-size: 20px;
	font-weight: bold;
	display: inline-block;
	cursor: pointer;
	margin-left: 30px;
}
.slide ul:after{
	content: '';
	clear: both;
	display: block;
}
.slide ul li{
	float: left;
	text-align: center;
}
.slide ul li img{
	vertical-align: middle;
	max-width: 100%;
}
.slide .circle_btn{
	position: absolute;
	bottom: 15px;
	text-align: center;
	left: 0;
	display: table;
	margin: 0 auto;
	width: 100%;
}
.slide .circle_btn button{
	box-sizing: content-box;
	opacity: .8;
	outline: none;
	border: none;
	width: 10px;
	height: 10px;
	background: rgba(255,255,255,.2);
	margin: 2px 15px;
	overflow: hidden;
	transition: all .6s;
	cursor: pointer;
	border-radius: 50%;
}
.slide .circle_btn button.active{
	background: rgba(255, 255, 255, 1)
}

.prev_btn img{
	width: 100%;
	height: 100%;
}
.next_btn img{
	width: 100%;
	height: 100%;
	transform: rotateZ(180deg)
}
.change{
	width: 100%;
}