.main-nav{
	
	width: 1240px;
	margin: auto;
	background-image: url(http://www.guideimmi.com/ymxm/img/dhbg.jpg);}
	.dh-nav{font-family: '微软雅黑';font-size: 16px;} 
	.zhu-nav{
		background-image: url(http://www.guideimmi.com/ymxm/img/dhbg.jpg);
		height: 42px; 
	}
ul { margin: 0px; padding: 0px; list-style: none; }
ul.dropdown { position: relative; width: 100%; font-weight: bold;font-family: "微软雅黑";}
ul.dropdown li { font-weight: bold; float: left; width: 142px; position: relative;background-image: url(http://www.guideimmi.com/ymxm/img/dhbg.jpg);font-family: "微软雅黑";}
ul.dropdown a:hover { color: #000; }
ul.dropdown li a { display: block; padding: 5px 8px; color: #ffffff; position: relative; z-index: 2000; text-align: center; text-decoration: none; font-weight: 300; }
ul.dropdown li a:hover, ul.dropdown li a.hover { background: #ffffff; position: relative; color: #000;border-right: 1px solid #9b8d7a; border-left: 1px solid #9b8d7a;border-top: 1px solid #9b8d7a ;}
ul.dropdown ul { display: none; position: absolute; top: 0; left: 0; width: 180px; z-index: 1000; }
ul.dropdown ul li { font-weight: normal; background: #f6f6f6; color: #000; border-bottom: 1px solid #ccc; }
ul.dropdown ul li a { display: block; color: #34495e !important; background: #eee !important; }
ul.dropdown ul li a:hover { display: block; background: #ffffff !important; color: #000 !important; }
.drop > a { position: relative; }
.drop > a:after { content: ""; position: absolute; right: 10px; top: 30%; border-left: 5px solid transparent; border-top: 5px solid #fff; border-right: 5px solid transparent; z-index: 999; }
.drop > a:hover:after { content: ""; border-left: 5px solid transparent; border-top: 5px solid #fff; border-right: 5px solid transparent; }
.drop{
		font-size: 16px;
		font-weight:bold;
	}