.slider_content_box {
	width: 100%;
	height: 500px;
	overflow: hidden;
	margin: 0 auto;
	position: relative
}    
.slider_content_box ul {
	width: 100%;
	height: 500px;
	overflow: hidden;
	position: absolute;
	top: 0;
	left: 0;
	padding: 0;
	margin: 0
}

.slider_content_box li {
	float: left;
	width: 100%;
	height: auto;
	list-style: none;
	overflow: hidden;
}
.slider_content_box li a{
	display: block;
	overflow: hidden ;
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	-webkit-background-size: cover;
	-o-background-size: cover;
	width: 100%;
	height: 500px;
	position:relative;
}
.slider_content_box li a img{
	display: block;
	position: absolute;
	width: 1920px;
	height: 100%;
	left: 50%;
	margin-left: -960px;
	vertical-align: middle;
}

.slide_dot_icon {
	width: 100% !important;
	margin: 0 auto;
	position: absolute;
	bottom: 20px;
	height: 20px;
	text-align: center;
	z-index: 99;
}  
.slide_dot_icon a {
	display: inline-block !important;
	width: 0px;
	height: 0px;
	margin: 0 5px;
	padding: 0;
	display: block;
	text-indent: -9999px;
	border:10px solid rgba(0, 0, 0, 0.5);
	border-radius: 100%;
}
.slide_dot_icon a.on {
	border-color: rgba(225, 225, 225, 0.7);
}