#navigation {font-size:0.75em; width:150px; text-align:left;}
#navigation ul {margin:0px; padding:0px;}
#navigation li {list-style: none; text-align:left;} 

ul.top-level {background:#666;}
ul.top-level li {border-bottom: #fff solid; border-top: #fff solid; border-width: 1px;}
ul.top-level li.audio {background: #1e61a8;}
ul.top-level li.visual {background: #3eb86b;}

#navigation a {color: #fff; cursor: pointer; display:block; line-height: 25px; text-indent: 10px; text-decoration:none; width:100%;}
#navigation a:hover{ text-decoration:underline;}

#navigation li:hover {background: #f90; position: relative;}

ul.sub-level {display: none; z-index:100;}
li:hover .sub-level {background: #999; border: #fff solid; border-width: 1px; display: block; position: absolute; left: 75px; top: 5px;}
ul.sub-level li {border: none; float:left; width:200px; z-index:100;}

/*Seconda Level*/
#navigation .sub-level { background: #999; z-index:100;}

/*Third Level*/
#navigation .sub-level .sub-level {background: #09C;}

/*RESET STYLES*/
li:hover .sub-level .sub-level {display:none;}
.sub-level li:hover .sub-level {display:block;}