root {
	display: block;
	margin: 2em;
	border: 1px blue dashed;
}

p {
	display: block;
	margin-left: auto;
	margin-right: auto;
	max-width: 5em;
	background-color: yellow;
	color: blue;
}

pre {
	display: block;
	margin-top: 1em;
	margin-bottom: 1em;
	white-space: pre;
	font-family: "Courier New", "Courier", monospace;
}