# nav li{ 
list-style-type: none; 
margin: 0px; 
padding: 0px; 
border: thin none; 
} 
#nav { 
position: absolute; 
margin-top:10px;
font-size: 11px; 
opacity: 0.8; 
} 
#nav li a { 
display: block; 
width: 147px; 
height: 30px;
color: #000000; 
background-image:url(../images/buttom.gif);
background-repeat:no-repeat;
line-height:30px;
padding-left:20px;
text-decoration: none; 
}

#nav li li a { 
display: block; 
width: 160px; 
height: 25px;
color: #000000; 
background-color:#f8f9fd;
background-image:none;
line-height:30px;
padding-left:20px;
text-decoration: none;
}
#nav li li a:hover { 
display: block; 
width: 160px; 
height: 25px;
color: #000000; 
background-color:#dff9f9;
background-image:none;
line-height:30px;
padding-left:20px;
text-decoration: none; 
}

#nav li { 
float: left; 
clear: left; 
width: 120px; 
} 
#nav ul { 
position: absolute; 
margin-left: 147px; 
margin-top: -30px; 
} 
#nav ul { 
display: none; 
} 
#nav li.show ul { 
display: block; 
} 
#nav li.show li ul { 
display: none; 
} 
#nav li li.show ul { 
display: block; 
}