ul.sdt_menu{
	margin:0;
	padding:0;
	list-style: none;
	font-family:"Microsoft Yahei","Myriad Pro", "Trebuchet MS", sans-serif;
	font-size:14px;
	width:665px;
	text-align:center;
	list-style-image: none;
}
ul.sdt_menu a{
	outline-style: none;
	outline-color: invert;
	outline-width: medium;
	text-decoration: none;
}
ul.sdt_menu li{
	float:left;
	width:102px;
	height:85px;
	position:relative;
	cursor:pointer;
}
ul.sdt_menu li > a{
	position:absolute;
	top:0px;
	left:0px;
	width:102px;
	height:85px;
	z-index:12;
}
ul.sdt_menu li a img{
	border:none;
	position:absolute;
	width:0px;
	height:0px;
	bottom:0px;
	left:102px;
	z-index:100;
}
ul.sdt_menu li span.sdt_wrap{
	position:absolute;
	top:15px;
	left:0px;
	width:102px;
	height:50px;
	z-index:15;
}
ul.sdt_menu li span.sdt_active{
	position:absolute;
	background:#00a2ea;
	top:85px;
	width:102px;
	height:0px;
	left:0px;
	z-index:14;
}
ul.sdt_menu li span span.sdt_link,
ul.sdt_menu li span span.sdt_descr,
ul.sdt_menu li div.sdt_box a{
	text-transform:uppercase;
	color:#fff;
}
ul.sdt_menu li span span.sdt_link{
	font-size:16px;
	float:left;
	width:102px;
	clear:both;
}

ul.sdt_menu li span span.sdt_descr{
	color:#ffffff;
	float:left;
	clear:both;
	height:14px;
	line-height:14px;
	width:102px; 
	font-size:8px;
	
	display:none;
}
ul.sdt_menu li div.sdt_box{
	position:absolute;
	width:102px;
	overflow:hidden;
	top:85px;
	left:0px;
	z-index:15;
	display:none;
	background:#fff;
}
ul.sdt_menu li div.sdt_box a{
	float:left;
	clear:both;
	line-height:30px;
	width:102px;
	border-bottom: 1px solid #efefef;
        color: #797979;
}
ul.sdt_menu li div.sdt_box a:first-child{
	margin-top:0;
}
ul.sdt_menu li div.sdt_box a:hover{
	color:#fff;
	background:#00a2ea;
}

.sdt_home{background:url(../../images/home.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}
.sdt_about{background:url(../../images/about.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}
.sdt_product{background:url(../../images/product.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}
.sdt_news{background:url(../../images/news.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}
.sdt_down{background:url(../../images/contact.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}
.sdt_contact{background:url(../../images/down.png) no-repeat top center;width:50px;height:50px;font-size:0;text-indent:-9999px;}