css代码呢？
#nav{ background-position: left -35px; height: 34px;}
#nav a{ color:#aa7d79;}
#nav a:hover{color:#cfbbb5;}
.nav_line:hover{height:34px;}
.nav_line ul{ opacity:0.8; filter:alpha(opacity=80); background-color:#2a1312; border-bottom:1px solid #4a3431; text-align:center; padding:15px 0px;}
.nav_line ul li{display:inline;}
#nav_1{width: 120px;}#nav_2,#nav_3{width: 101px;}#nav_4{width: 117px;}#nav_5{width: 104px;}#nav_6,#nav_7{width: 100px;}#nav_8{width: 102px;}#nav_9{width: 179px;}
#nav_1:hover{background-position: left -1px;}#nav_2:hover{background-position: -120px -1px;}#nav_3:hover{background-position: -221px -1px;}#nav_4:hover{background-position: -322px -1px;}#nav_5:hover{background-position: -439px -1px;}#nav_6:hover{background-position: -543px -1px;}#nav_7:hover{background-position: -643px -1px;}#nav_8:hover{background-position: -743px -1px;}#nav_9:hover{background-position: -845px -1px;}
这是css代码