text-shadow: 0 2px 0 #000;color: #999;}
.top-nav li a:hover{color: #fafafa;}
.top-nav li ul{visibility: hidden;position: absolute;list-style: none;top:38px;left: 0;z-index: 1;padding: 0;
background-color: #444;background-image: linear-gradient(#444,#111);box-shadow: 0 -1px 0 rgba(255,255,255,.3);
border-radius: 3px;opacity: 0;margin: 20px 0 0 0;transition: all .2s ease-in-out;
_margin:0; }
.top-nav li:hover > ul{opacity: 1;visibility: visible;margin: 0;}
.top-nav ul li{float: none;display: block;border: 0;box-shadow: 0 1px 0 #111,0 2px 0 #666;}
.top-nav ul a{padding: 10px;width: 130px;display: block;float: none;_height:10px;}
.top-nav ul a:hover{background-color: #0186ba;background-image: linear-gradient(#04acec,#0186ba);}
.top-nav ul li:first-child > a{border-radius: 3px 3px 0 0;}
.top-nav ul li:last-child > a{border-radius: 0 0 3px 3px;}
.top-nav ul li:first-child > a:before{ content: "";position: absolute;left:40px;top: -6px;
display: block;width: 0;border-bottom: 6px solid #444;border-left: 6px solid transparent; border-right: 6px solid transparent; }
.top-nav ul li:first-child > a:hover:before{border-bottom-color:#04acec; }
.top-nav ul ul{top:0;left: 150px;margin: 0 0 0 20px;_margin:0;box-shadow: -1px 0 0 rgba(255,255,255,.3);}
.top-nav ul ul li:first-child a:before{left: -6px;top: 50%;margin-top: -6px;border-left: 0;border-bottom: 6px solid transparent;
border-top: 6px solid transparent;border-right: 6px solid #3b3b3b;}
.top-nav ul ul li:first-child a:hover:before{border-right-color:#0299d3;border-bottom-color:transparent;}
</style>
<script type="text/javascript">
<!--针对IE6处理hover的问题-->
// $(function () {
// if($.browser.msie && $.broswer.version.substr(0,1)<7){
// $("li").has("ul").mouseover(function () {
// $(this).children("ul").css("visibility","visible");
// }).mouseout(function () {
// $(this).children("ul").css("visibility","hidden");
// });
// }
// })
</script>
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