img {
	max-width: 100%;
}

html {
	font-size: 12pt;
}

@media (min-width: 640px) {
	html {
		font-size: 16pt;
	}
}

body {
	margin-left: auto;
	margin-right: auto;
	width: 90%;
	max-width: 40rem;
}

@media (min-width: 640px) {
	.two-columns-example {
		display: flex;
	}

	.two-columns-example > * {
		width: 50%;
	}
}