header {
	width: 100%;
	height: 60px;
	position: relative;
	background-color: silver;
	text-align: center;
	font-family: sans-serif;
}

nav {
	width: 100%;
	height: 30px;
	position: relative;
	background-color: blue;
	color: white;
	text-align: center;
}

nav ul {
	list-style-type: none;
	margin: 0;
	padding: 0;
	overflow: hidden;
}

nav li {
	margin-left: 20px;
	margin-right: 20px;
	float: left;
}

nav a {
	font-family: sans-serif;
	font-size: 20px;
	font-weight: bold;
	text-decoration: none;
	color: white;
}

aside {
	width: 25%;
	padding: 10px;
	float: left;
	background-color: lightblue;
	font-family: sans-serif;
	font-size: 16px;
}

aside a {
	text-decoration: none;
}

main {
	margin-left: 27%;
	padding: 10px;
	background-color: white;
	font-family: serif;
	font-size: 24px;
}

footer {
	width: 100%;
	clear: both;
	background-color: silver;
	text-align: center;
}

h1, h2, h3 {
	text-align: center;
}

h4.follow {
	margin-bottom: 0;
}

p.follow {
	margin-top: 0;
}

span.special {
	color: blue;
}