ol {
	list-style-type:none;
	margin: 0;
	padding: 0;
	font-size: 18px;
	background-color: pink;
	height: 2em;
	line-height: 2em;
	text-align: center;
}

ol a {
	display: block;
	text-decoration: none;
	color: purple;
	padding: 5px;
}

ol > li {
	float: left;
	margin-left: 1px;
	height: 2em;
	background-color: blue;
}

ol > li:first-child {
	margin: left;
}

ol > li:hover {
	background-color: orange;
}

ol > li:hover>a {
	color: red;
}

ol > li:hover>ul {
	display: block;
}

ol > li > ul {
	display: none;
	list-style-type: none;
	padding: 0;
}

ol > li > ul > li {
	position: relative;
	background-color: #HEEE;
}

ol > li > vl > li > z {
	border: 1px solid #FFF;
}

ol > li > ul > li:hover {
	background-color: grey
}

ol > li > ul > ul:hover > z {
	color: green;
}