#nav {padding:0; margin:0; list-style:none; height:31px; background:#fff  url(../Immagini/Menu/button-no.jpg) right top repeat-x; position:relative; z-index:500;  text-align:left; float:right;}
#nav li.top {display:block; float:left; height:31px;}
#nav li a.top_link {display:block; float:left; height:31px; line-height:31px; color:#006428; text-decoration:none; text-transform:uppercase; font-size:12px; font-weight:bold; padding:0 0 0 12px; cursor:pointer;background: url(../Immagini/Menu/three_1.jpg);}
#nav li a.top_link span {float:left; display:block; padding:0 18px 0 6px; height:31px; background: url(../Immagini/Menu/three_1.jpg) right top no-repeat;}
#nav li a.top_link span.down {float:left; display:block; padding:0 22px 0 6px; height:31px; background: url(../Immagini/Menu/three_1a.jpg) no-repeat right top;}

#nav li:hover a.top_link {color:#006428; background: url(../Immagini/Menu/three_1.jpg) no-repeat; text-decoration:underline;}
#nav li:hover a.top_link span {background:url(../Immagini/Menu/three_1.jpg) no-repeat right top;}
#nav li:hover a.top_link span.down {background:url(../Immagini/Menu/three_1a.jpg) no-repeat right top;}

/* Default list styling */

#nav li:hover {position:relative; z-index:200;}

#nav li:hover ul.sub
{left:1px; top:31px; background: #e7ebec; padding:0px; border:1px solid  #CCC; white-space:nowrap; width:200px; height:auto; z-index:300; line-height:28px;}
#nav li:hover ul.sub li
{display:block; position:relative; float:left; width:200px; font-weight:normal;}
#nav li:hover ul.sub li a
{display:block; font-size:12px; height:28px; width:200px; line-height:28px; text-indent:5px; color:#54a81e; text-decoration:none;border:0px solid #ffffff;}
#nav li ul.sub li a.fly
{background:#ffffff url(../Immagini/Menu/arrow.gif) 190px 6px no-repeat;}
#nav li:hover ul.sub li a:hover 
{background:#ffffff; color:#006428; border-color:#000;}
#nav li:hover ul.sub li a.fly:hover
{background:#ffffff url(../Immagini/Menu/arrow_over.gif) 190px 6px no-repeat; color:#006428;}


#nav li:hover li:hover ul,
#nav li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover li:hover ul
{left:200px; top:-4px; background: #ffffff; padding:3px; border:1px solid #000000; white-space:nowrap; width:200px; z-index:400; height:auto;}

#nav ul, 
#nav li:hover ul ul,
#nav li:hover li:hover ul ul,
#nav li:hover li:hover li:hover ul ul,
#nav li:hover li:hover li:hover li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover li:hover a.fly,
#nav li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover li:hover a.fly
{background:#eb1c24 url(../Immagini/Menu/arrow_over.gif) 150px 6px no-repeat; color:#fff; border-color:#000;} 

#nav li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li:hover li a.fly
{background:#ffffff url(../Immagini/Menu/arrow.gif) 150px 6px no-repeat; color:#000; border-color:#ffffff;}