body {
	font-family: "Courier New", Courier, monospace;
	font-size: 14px;
}

div.article {
	margin-bottom: 30px;
	padding-bottom: 10px;
	border-bottom: 1px solid #999;
	position: relative;
}

.grid-container {
	display: grid;
	grid-template-areas:
		'header header header header header'
		'menu main main main main'
		'footer footer footer footer footer';
	grid-gap: 10px;
	padding: 10px;
}

section.header {
	grid-area: header;
}

section.nav-side {
	grid-area: menu;
}

section.content {
	grid-area: main;
}

section.footer {
	grid-area: footer;
}

h3 {
	margin: 0;
}

a.top {
	position: absolute;
	bottom: 5px;
	right: 10px;
}