header {
	background-color: black;
	color: gray;
	display: none;
	height: 60px;
}
header h1 {
	font-weight: 100;
	margin: 0;
	float: left;
	padding: 10px;
}
header strong {
	font-weight: 900;
}
header a {
	color: inherit;
	text-decoration: none;
	border-bottom: none;
}

.show-header > header {
	display: block;
}