#nav {
float:left;
font: 12px Verdana, Arial, Helvetica, sans-serif;
font-weight:bold;
}

#nav, #nav li ul {
	margin: 0;
	padding: 10px 0 0 10px;
	list-style: none;
	width: 180px;
	
}
	
#nav li {
	width: 180px;
	height:auto;
	margin: 0 0 -1px -1px;
	position: relative;
}
	
#nav li ul {
	position: absolute;
	left: 180px; /*tamanho do box menos o padding*/
	top: -10px;
	display: none;
}

#nav li a {
	display: block;
	text-decoration: none;
	text-align:right;
	color:#fff;
	border: 1px solid #fff;
	height:18px;
	padding:3px 10px 0 0;
	background: url(imagens/menua.jpg) top repeat-x;
}
#nav li a:hover{
background: url(imagens/menuahover.jpg) top repeat-x;}

#nav li.submenu { background:transparent;}

/* ul#nav li.submenu a{ background:#000; } colore apenas sub menu*/
/* comportamento */

#nav li:hover ul { display: block; } 
#nav li.submenu {  background:transparent; }
#nav li:hover ul li ul { display: none; }
#nav li:hover ul li:hover ul { display: block;
background:transparent; }