body {
	font-family: 'Source Code Pro', monospace;
}
.main {
	display: flex;
	justify-content: center;
	font-size: 20em;
	margin-top: 7%;
}
.main sup {
	font-size: .5em;
}
footer {
	position: absolute;
	bottom: 0;
	margin: 1em;
	color: grey;
	font-size: 1.3em;
}