body {
	font-family: Arial, sans-serif;
	margin: 0;
	padding: 0;
}

header, nav, main, footer {
	display: block;
}

header {
	background-color: #f2f2f2;
	padding: 20px;
	text-align: center;
}

nav {
	background-color: #333;
	color: #fff;
	padding: 10px;
}

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

nav li {
	display: inline-block;
	margin-right: 20px;
}

nav li:last-child {
	margin-right: 0;
}

nav a {
	color: #fff;
	text-decoration: none;
}

nav a:hover {
	text-decoration: underline;
}

main {
	padding: 20px;
}

section {
	margin-bottom: 20px;
}

h1, h2 {
	font-size: 36px;
	margin-top: 0;
}