* {
	padding: 0;
	margin: 0
}
.banner {
	width: 100%;
	height: 1000px;
	font-size: 0;
	overflow: hidden;
	position: relative
}
.banner_img {
	width: 100%;
	height: 1000px;
	position: absolute;
	left: 0;
	top: 0
}
.banner_img li {
	width: 100%;
	height: 1000px;
	display: inline-block;
	background-position: center;
	background-repeat: no-repeat;
	float: left;
	list-style: none
}
.banner_list {
	height: 50px;
	top: 950px;
	position: relative;
	margin: 0 auto;
	z-index: 1
}
.banner_list span {
	display: block;
	cursor: pointer;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	border: 3px solid #555;
	float: left;
	margin: 0 5px
}
.banner_list .spcss {
	border: 3px solid #9acd32
}
.banner_left {
	position: absolute;
	height: 90px;
	width: 60px;
	top: 50%;
	left: -60px;
	background-color: rgba(73,72,62,.6);
	margin-top: -45px;
	text-align: center;
	transition: all .5s;
	z-index: 2
}
.banner_left:hover {
	background-color: rgba(73,72,62,.9)
}
.banner_right {
	position: absolute;
	height: 90px;
	width: 60px;
	top: 50%;
	right: -60px;
	background-color: rgba(73,72,62,.6);
	margin-top: -45px;
	text-align: center;
	transition: all .5s;
	z-index: 2
}
.banner_right:hover {
	background-color: rgba(73,72,62,.9)
}
.banner_left img {
	margin-top: 22px
}
.banner_right img {
	margin-top: 22px
}