body{
  margin: 0px;
  padding: 0px;
  background: #fff;
  font-family: 'Microsoft YaHei', sans-serif; 
}
div{font-family:'Microsoft YaHei', 微软雅黑，Arial ，Verdana， Geneva， sans-serif;}
.topdz   {font-family:'Microsoft YaHei',"微软雅黑",Verdana, Arial;font-size:22px;color: #000;font-weight: 600;text-decoration: none;}
.topz   {font-family:"微软雅黑",Verdana, Arial;font-size:12px;color: #999;text-decoration: none;}
.topz A:link   {font-family:"微软雅黑",Verdana, Arial;font-size:14px;color: #000;text-decoration: none;}
.topz A:visited{font-family:"微软雅黑",Verdana, Arial;font-size:14px;color: #000;text-decoration: none;}
.topz A:hover  {font-family:"微软雅黑",Verdana, Arial;font-size:14px;color: #FF0000;text-decoration: none;}
.topz A:active {font-family:"微软雅黑",Verdana, Arial;font-size:14px;color: #FF0000;text-decoration: none;}

h1{
  margin: 2em 0px;
  padding: 0px;
  color: #0081CC;
  text-align: center;
  font-weight: 500;
  font-size: 40px;
}

.headerbgs{ width:100%;height:46px;background: #A5E8F8;}
nav{
  width: 100%; 
  margin: 0 auto; /*距离上面1em*/
   font-family: 'Microsoft YaHei', sans-serif; 

}

ul{
  margin: 0px auto;
  padding: 0px;
  list-style: none;
  
}

ul.dropdown{ 
  position: relative; 
 width: 1100px; 


 
}

ul.dropdown li{ 
  font-weight: bold; font-size:16px;
  float: left; 
  width: 120px; 
  position: relative;
  background: #A5E8F8;

}

ul.dropdown a:hover{ 
  color: #000; 
  font-weight: bold; 
}

ul.dropdown li a { 
  display: block; 
  padding: 12px 8px;  /*定义高度*/
  
 /* color: #34495e; */
  color: #000;
  font-weight: bold; 
  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: #3498db;*/
  background: #0081CC;
  position: relative;
  color: #fff;
  font-weight: bold; 
}


ul.dropdown ul{ 
 display: none;
 position: absolute; 
  top: 0; 
  left: 0; 
  width: 120px; 
  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: #3498db !important;
  color: #fff !important;
} 

.drop > a{
  position: relative;
  
}

.drop > a:after{
  content:"";
  position: absolute;
  right: 10px;
  top: 40%; /*小三角点*/
  border-left: 5px solid transparent;
  border-top: 5px solid #333;
  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;
}


<!--qq在线代码-->
*{ margin:0; padding:0; list-style:none;}
img{ border:0;}

.rides-cs {  font-size: 12px; background:#29a7e2; position: fixed; top: 250px; right: 0px; _position: absolute; z-index: 1500; border-radius:6px 0px 0 6px;}
.rides-cs a { color: #00A0E9;}
.rides-cs a:hover { color: #ff8100; text-decoration: none;}
.rides-cs .floatL { width: 36px; float:left; position: relative; z-index:1;margin-top: 21px;height: 181px;}
.rides-cs .floatL a { font-size:0; text-indent: -999em; display: block;}
.rides-cs .floatR { width: 130px; float: left; padding: 5px; overflow:hidden;}
.rides-cs .floatR .cn {background:#F7F7F7; border-radius:6px;margin-top:4px;}
.rides-cs .cn .titZx{ font-size: 14px; color: #333;font-weight:600; line-height:24px;padding:5px;text-align:center;}
.rides-cs .cn ul {padding:0px;}
.rides-cs .cn ul li { line-height: 38px; height:38px;border-bottom: solid 1px #E6E4E4;overflow: hidden;text-align:center;}
.rides-cs .cn ul li span { color: #777;}
.rides-cs .cn ul li a{color: #777;}
.rides-cs .cn ul li img { vertical-align: middle;}
.rides-cs .btnOpen, .rides-cs .btnCtn {  position: relative; z-index:9; top:25px; left: 0;  background-image: url(/qq/lanrenzhijia.png); background-repeat: no-repeat; display:block;  height: 146px; padding: 8px;}
.rides-cs .btnOpen { background-position: 0 0;}
.rides-cs .btnCtn { background-position: -37px 0;}
.rides-cs ul li.top { border-bottom: solid #ACE5F9 1px;}
.rides-cs ul li.bot { border-bottom: none;}
<!--qq在线代码结束-->