div#cover {
	text-align: center;
	display: block;
	height: 99%;
}
img#coverimage {
	padding: 0;
	margin: 0;
	height: 99%;
}
img#coverimage:only-of-type {height: 99vh;}

body.fullpage {
	margin: 0;
	padding: 0;
	oeb-column-number:1;
}