@media screen {
	div.printFooter {
		display: none;
	}
}
@media print {
	div.printFooter {
		position: fixed;
		bottom: 0;
	}
	@page {
		margin: 4.0cm 3.225cm;
	}
	body {
		font-size:22px;
		line-height: 1.3;
		background: #fff !important;
		color: #000;
	}
	div#sidebar {
		display:none;
	}	
	div.standalone-nav {
		display:none;
	}
	h1 {
		font-weight:bold;
		font-size:30px;
		margin-bottom:1.5rem;
	}
	h2 {
		font-weight:bold;
		font-size:24px;
		margin-bottom:1.5rem;
		margin-top:2.5rem;
	}
	h3 {
		font-weight:bold;
		font-size:24px;
		margin-bottom:1rem;
		margin-top:1rem;
	}
	li {
		margin-top:0.5rem;
		margin-bottom:0.5rem;
	}
	nav {
		display: none;
	}
	footer {
		display: none;
	}
	pre {
		font-size: 100%;
	}
	section.exercise,section.interlude {
		page-break-inside: avoid;
	}
	pre.output-block{
		page-break-before: avoid;
	}
	h1, h2, h3 {
		page-break-after: avoid;
	}
	button.run-code {
		display: none !important;
	}
}