* {
	margin:0;
	padding:0;
}
#banner {
	width:500px;
	height:300px;
	margin:20px auto;
	/*border:1px solid red;
	*/
    position:relative;
}
#banner .pic {
	width:100%;
	height:100%;
	overflow:hidden;
}
li {
	list-style:none;
}
#banner .pic ul {
	width:1000%;
	overflow:hidden;
	margin-left:-500px;
}
#banner .pic ul li {
	float:left;
}
#banner .tab {
	width:70px;
	height:14px;
	/*background:rgba(255,255,255,0.5);
	*/
    position:absolute;
	left:50%;
	margin-left:-35px;
	bottom:10px;
	border-radius:7px;
}
#banner .tab ul li {
	width:10px;
	height:10px;
	border-radius:100%;
	background:#999;
	float:left;
	margin:2px 2px;
	cursor:pointer;
}
#banner .tab ul li.on {
	background:#ffffff;
}
#banner .btn {
	display:none;
}
#banner .btn a {
	display:block;
	width:40px;
	height:40px;
	text-decoration:none;
	background:rgba(0,0,0,0.3);
	color:#fff;
	font-size:26px;
	font-weight:bold;
	text-align:center;
	line-height:40px;
	position:absolute;
	top:50%;
	margin-top:-20px;
}
#prev {
	left:5px;
}
#next {
	right:5px;
}
#banner .btn a.on {
	background:rgba(0,0,0,0.6)
}
#banner .btn a:hover {
	background:rgba(0,0,0,0.6)
}