body {
	margin:40px auto;
	max-width:650px;
	line-height:1.6;
	font-size:18px;
	color:#444;
	padding:0 10px;
}
h1,h2,h3 {
	line-height:1.2;
}
.navbar {
	display:flex;
	justify-content: space-around;
}
a {
	text-decoration: none;
	color: inherit;
}
a:hover {
	text-decoration: underline;
}