.reveal .speaker-notes {
	background-color: #2a76dd;
	opacity : 0.7;
}
.centered {
	display: flex;
	justify-content: center;
	align-items: center;
	font-size:1em;
	font-weight: bold;
}
.reveal {
	font-size: 1.5rem;
}

.reveal pre {
	font-size: 1.3rem;
}