* {
	margin:0;
	padding:0;
}
html,body {
	width:100%;
	height:100%;
}
.banner {
	width:100%;
	height:400px;
	background:black;
	/*overflow:hidden;
	*/
}
.group {
	width:100%;
	height:400px;
	overflow:hidden;
	position:relative;
}
.group>li {
	width:100%;
	height:400px;
	float:left;
	list-style:none;
	display:none;
}
.group>li:nth-child(1) {
	background:red;
}
.group>li:nth-child(2) {
	background:blue;
}
.group>li:nth-child(3) {
	background:green;
}
.group>li:nth-child(4) {
	background:yellow;
}
.group .current {
	display:block;
}
.banner>span {
	width:20px;
	height:20px;
	display:inline-block;
	background:rgba(255,255,255,0.5);
	color:#fff;
}
.banner .left {
	position:absolute;
	left:0;
	top:190px;
}
.banner .right {
	position:absolute;
	right:0;
	top:190px;
}
.slide {
	width:480px;
	height:100px;
	position:absolute;
	top:280px;
	left:540px;
	background:#1b9c16;
	list-style:none;
	display:flex;
	justify-content:center;
}
.slide>li {
	width:100px;
	height:100px;
	background:#fff;
	opacity:0.5;
	float:left;
	margin-right:10px;
	font-size:50px;
	text-align:center;
	line-height:100px;
}
.slide .now {
	background:red;
	opacity:0.5;
}