html, body {
	overflow: auto !important;
	height: auto !important;
	/*background: #fff; */
}
 
.reveal-wrapper {
	width: 80%;
	position: relative;
	/*height: 400px;*/
}

.reveal-sixteen-by-nine {
	padding-bottom: 56.25%;
}
 
.reveal {
	background-color: #333;
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}

.reveal .controls,
.reveal .progress,
.reveal .playback {
	position: absolute;
}