html,
body {
	height: 100%;
}

body {
	display: flex;
	flex-flow: column nowrap;
	background-color: #171717;
	color: palegreen;
	height: 100vh;
	margin: 0;
	padding: 0;
	justify-content: center;
	align-items: center;
	text-align: center;
	gap: 18px;
}

header {
	display: flex;
	padding: 0;
	margin: 0;
	height: 47px;
	width: 100%;
	background-color: #131313;
	color: palegreen;
	align-items: center;
	border-bottom: solid 1px palegreen;
	gap: 16px;
}

a {
	text-decoration: none;
	color: palegreen;
	border: solid 1px palegreen;
	padding: 6px;
	margin: 0 8px;
}

main {
	flex: 1;
}

ul {
	list-style: none;
}