* {margin:0;padding:0;border:0;}

body {font-family:arial, 宋体,serif;font-size:12px;}

#nav {list-style-type:none;line-height:20px;overflow:hidden;background:#333;border-top:1px solid white;border-bottom:1px solid white;}

#nav a {display: block;padding:3px 17px; text-align:center;color:#fff; text-decoration:none;border-right:1px solid white;}
#nav a:hover{color:#0ec;text-decoration:none;}

#nav li {float: left;text-align:center;list-style: none;}


#nav li ul {
	line-height:26px; 
	list-style: none;
	text-align:left;
	left: -999px;
	width: 700px; //注意,这里一定要设置宽度;
	position: absolute;
	background:url(/images/bg_menu2.jpg) repeat-x;
}

#nav li ul li{
  float:left; //float就是子菜单横向的关键,可以继承父菜单而省略float
}


#nav li ul a{
 display: block;text-align:left;text-align:center;
}
#nav li ul a{
 color:#210a10; text-decoration:none;
}
#nav li ul a:hover  {
 color:#096653;text-decoration:none;font-weight:normal;
}

#nav li.sfhover ul {
 left:0;
}
#content {
 clear: left;
}