.menu {
	margin: 0;
	padding: 0;
	list-style: none outside none;
	display: block;
}
.menu_item {
	display: block;
	position: relative;    
}
.menu_item > a {
	display: block;
}
.menu_item > a:before {
	content: " ";
	height: inherit;
	width: 0;
	vertical-align: middle;
	display: inline-block;	
}
.menu_item > a > * {
	vertical-align: middle;
	height: inherit;
}
.menu_item > .menu {
	position: absolute;    
}
.menu_horiz {
	white-space: nowrap;    
}
.menu_horiz > .menu_item {
	display: inline-block;
}
.menu_bottom {
	top: 100%;    
}
.menu_right {
	top: 0;
	left: 100%;
}
.menu.menu_sub {
	display: none;
	z-index: 1;
}