ul {
	list-style-type: none;
	display: flex;
	flex-direction: row;
}
li {
	flex-grow: 1;
}
a {
	display: block;
	padding: 1em;
	background-color: Blue;
	text-align: center;
	margin-right: 0.2em;
	text-decoration: none;
	color: white;
}
a:hover {
	background-color: Yellow;
	color: red;
}
h1 {
	text-align: center;
}