div.menu {
	padding-top:20px;
	text-align: center;
	height: 180px;
	border: 1px solid white;
	background: silver;
}

th {
	position: -webkit-sticky;
	position: sticky;
	top: 50px;
	z-index: 2;
	background-color: white;
}

th[scope=row] {
	position: -webkit-sticky;
	position: sticky;
	left: 0;
	z-index: 1;
}

th:not([scope=row]):first-child {
	left: 0;
	z-index: 3;
}