*,
::before,
::after {
	box-sizing: border-box;
}

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



html {
	background: #000;
	color: #fff;
}

body {
	max-width: 720px;
	margin: 0px auto;
	padding: 0px 0;
	border-width: 0 3px;
	border-color: #06b;
	border-style: double;
	box-sizing: border-box;

	&>header {
		text-align: center;
		margin-bottom: 2em;
		background-color: #012;
		padding: 20px 0;

		p {
			padding: 0.5rem;
			background-color: #036;
			border-width: 3px 0;
			border-style: double;
			border-color: #06b;
		}
	}

	&>footer {
		position: sticky;
		bottom: 0px;
		clear: both;
		padding: 1em;
		background-color: #012;
		border-width: 1px 0;
		border-style: solid;
		border-color: #06b;

		h1 {
			width: 50%;
			float: left;
			margin: 0;
		}

		a {
			color: white;
			text-decoration: none;
			display: block;
		}
	}
}

section {
	text-align: center;
	width: 33%;
	float: left;
	padding: 0.5rem;

	header {
		border-bottom: 1px solid #fff;
		padding: 1rem 0 0.2rem 0;
	}

	ul {
		margin: 0;
		padding: 0;

		li {
			display: block;
		}
	}
}