.k_banner{ position:relative; min-width:980px; height:450px; overflow:hidden;}
.k_banner .pics{ height:100%;}
.k_banner .pics li{ display:none; height:100%;}
.k_banner .item_1{ background:url(images/tu.png) center 0 no-repeat;}
.k_banner .item_2{ background:url(images/tu1.png) center 0 no-repeat;}
.k_banner .item_3{ background:url(images/tu2.png) center 0 no-repeat;}
.k_banner .item_4{ background:url(images/bg_04.jpg) center 0 no-repeat;}
.k_banner .tabs{ position:absolute; top:400px; left:-1000px;}
.k_banner .tabs b{ display:inline-block; width:11px; height:11px; overflow:hidden; background:url(images/tab_03.png) 0 0 no-repeat; font-size:0; cursor:pointer; margin:0 4px 0 5px;}
.k_banner .tabs b{_filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, src="images/tab_03.png"); _background:none;}
.k_banner .tabs b.on{ background:url(images/tab_on_03.png) 0 0 no-repeat;}
.k_banner .tabs b.on{_filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, src="images/tab_on_03.png"); _background:none;}