html {
	color-scheme: dark;
	font-family: sans-serif;
	background-color: #111;
}

main {
	width: 800px;
	background-color: #222;
	margin: auto;
	padding: 2px 32px 32px;
	border-left: 4px solid #d3f;
}

@media screen and (max-width:900px) {
	main {
		width: calc(100% - 82px);
	}
}