body {
	height: 100%;
	text-align: center;
	margin: 0;
	padding: 0;
}

.prev {
	cursor: pointer;
	position: fixed;
	font-size: 48px;
	font-weight: bold;
	left: 0;
	top: 40%;
	z-index: 99;
	background: black;
	color:white;
	opacity: 0;
}

[data-action] {
	cursor: pointer;
}

[data-action]:hover {
	opacity: 0.8;
}

a {
	background: black;
	text-decoration: none;
	color: white;
}

section {
	position: absolute;
	width: 100%;
	height: 100%;
	overflow: hidden;
	transition: 400ms opacity ease;
	opacity: 0;
	z-index: -1;
}

section.active {
	opacity: 1;
	overflow-y: scroll;
	z-index: 1;
}

.intro img {
	max-width: 90%;
	margin-bottom: 96px;
}

.intro .link1 {
	font-size: 36px;
	margin-bottom: 96px;
	background: black;
	color:white;
}

.intro .link2 {
	font-size: 18px;
	margin-bottom: 48px;
	background: black;
	color:white;
}


.classes img {
	max-width: 75%;
	margin-bottom: 48px;
}

.class .page1 img {
	max-width: 90%;
	margin-bottom: 96px;
}

.class .page2 img {
	max-width: 90%;
	margin-bottom: 96px;
}

.class .shared {
	font-size: 36px;
	margin-bottom: 48px;
	background: black;
	color:white;
}

.moves img {
	max-width: 90%;
	margin-bottom: 48px;
}