ul#menu, ul#menu ul.sub-menu{
	padding: 0; /* Width problem solved. */
	margin: 0;
	display: inline-block;
	border: 1px solid rgb(220,220,220);
}
.sub-menu{
	background: rgb(220,220,220);
}
li#fir a#firs{
	font-size: 13px;
	color: #000;
}
ul#menu li, ul#menu ul.sub-menu li {
	text-align: left;
	list-style-type: none;
	display: inline-block;
}
ul#menu li a, ul#menu li ul.sub-menu li a {
	text-decoration: none;
	font-size: 12px;
	padding: 6px;
	display: inline-block;
	color: #000;
}
/*Make the parent of sub-menu relative*/
ul#menu li {
	text-align: center;
	position: relative;
	width: 160px;
}
/*sub menu*/
ul#menu li ul.sub-menu {
    display:none;
    position: absolute;
    top: 30px;
    left: -1;
    width: 160px;
}
ul#menu li:hover ul.sub-menu {
    display:block;
}