#dt-hd-navs-wrap{ position:fixed; left:0px; top:0px; right:0px; bottom:0px; z-index:30; background:#fff;}
#dt-hd-navs-wrap .dt-hd-navs{ overflow:hidden; position:absolute; top:20%; width:100%;}
#dt-hd-navs-wrap .dt-hd-navs li{ width:25%; float:left; margin-bottom:15px; font-size:13px; text-align:center;}
.index_ico { width:45px; height:45px; background:url(../images/index_ico.png) no-repeat; display:inline-block; vertical-align:middle; background-size:auto 45px; }
.index_ico1 { background-position:0px 0px; }
.index_ico2 { background-position:-45px 0px; }
.index_ico3 { background-position:-90px 0px; }
.index_ico4 { background-position:-135px 0px; }
.index_ico5 { background-position:-180px 0px; }
.index_ico6 { background-position:-225px 0px; }
.index_ico7 { background-position:-270px 0px; }
.index_ico8 { background-position:-315px 0px; }
.index_ico9 { background-position:-360px 0px; }
.index_ico10 { background-position:-405px 0px; }
.index_ico11 { background-position:-450px 0px; }
.index_ico12 { background-position:-495px 0px; }
.index_ico13 { background-position:-540px 0px; }
.index_ico14 { background-position:-585px 0px; }
.index_ico15 { background-position:-630px 0px; }
.index_ico16 { background-position:-674px 0px; }
.index_ico17 { background-position:-719px 0px;}
.index_ico18 { background-position:-764px 0px;}
.index_ico19{ background-position:-809px 0px;}
.index_ico20{ background-position:-854px 0px;}