#nav, #nav ul{
margin:0;
padding:0;
list-style-type:none;
list-style-position:outside;
position:relative;
font-size: 12px;
line-height:1.5em; 
}

#nav {margin: 0 10px;}

#nav a{
display:block;
padding:0px 5px;
border:1px solid black;
color:#fff;
text-decoration:none;
background-color:#666;
}

#nav a:hover{
background-color:#fff;
color:#666;
}

#nav li{
float:left;
position:relative;
}

#nav ul {
position:absolute;
display:none;
width:15em;
top:1.5em;
}

#nav li ul a{
width:15em;
height:auto;
float:left;
}

#nav ul ul{
top:auto;
}	

#nav li ul ul {
left:15em;
margin:0px 0 0 10px;
}

#nav li:hover ul ul, #nav li:hover ul ul ul, #nav li:hover ul ul ul ul{
display:none;
}
#nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li li li li:hover ul{
display:block;
}