body {
	font-family: Courier New, monospace;
	background: #fff;
}

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

.section {
	max-width: 800px;
	margin: 0 auto 20px;
	padding: 15px;
	border: 1px solid #222;
	background: #f9f9f9;
}

.button {
	display: inline-block;
	padding: 8px 12px;
	background: #222;
	color: #fff;
	text-decoration: none;
	border-radius: 4px;
}

input,
textarea {
	width: 100%;
	padding: 8px;
	margin-bottom: 10px;
    box-sizing: border-box;
}

.topbar {
	background: #fff;
	border-bottom: 1px solid #222;
	padding: 10px 20px;
}

.center-nav {
	text-align: center;
}

.center-nav a {
	margin: 0 6px;
}

.hidden {
	display: none;
}