#overlay {
	position: absolute;
	display: none;
	top: 0;
	left: 0;
	z-index: 990;
	width: 100%;
	height: 500px;
}

#box {
	position: absolute;
	display: none;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	text-align: center;
}

.book-control.close { z-index: 1100; }

#book { outline: none; }