.hidden {
	display: none;
}

#popupMenu {
	position: fixed;
	bottom: 3em; /* ボタンの下に表示 */
	right	: 10px;
	background-color: white;
	border: 1px solid #ccc;
	padding: 10px;
	box-shadow: 0 2px 8px rgba(0,0,0,0.2);
	z-index: 1000;
}

#popupMenu ol {
	margin-left: 10px;
}