.spacer {
	width: 20px;
	height: 20px;
}
div.v-centered, div.centered {
	margin-top: auto;
	margin-bottom: auto;
}
div.h-centered, div.centered {
	margin-left: auto;
	margin-right: auto;
}
.smallLogo {
	width: 150px;
}
.logo {
	width: 200px;
}
.reveal section img {
	background-color: white;
}