html, body {
	margin: 0;
	padding: 0;
}

header {
	background-color: #f1f1f1;
	height: 60px;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
}

footer {
	background-color: #f1f1f1;
	height: 30px;
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
}

aside {
	background-color: #f1b7cc;
	position: fixed;
	left: 0;
	width: 20%;
	top: return $("header").height();
	bottom: return $("footer").height();
}

body {
	padding-top: return $("header").height();
	padding-bottom: return $("footer").height();
}

main {
	background-color: #a8c1d3;
	margin-left: return $("aside").width() + 15;
	min-height: function(){
		return $(window).height() - $("header").height() - $("footer").height()
	};
}