body {
	text-align: justify;
	font-size: x-large;
	line-height: 2;
	margin: 2em
} h1, h2, h3 {
	line-height: 1.2;
	text-align: center
} p {
	text-indent: 2em
} a {
	text-decoration: none
} a:hover {
	color: red
} nav {
	display: flex;
	justify-content: space-between
}