header {
	background-color: #eee;
	padding: 20px;
	text-align: center;
}

main {
	margin: 40px auto;
	max-width: 800px;
}

ul {
	list-style: none;
	padding: 0;
}

li {
	margin: 10px 0;
}

a {
	display: flex;
	align-items: center;
	font-size: 18px;
	color: #333;
	text-decoration: none;
	transition: background-color 0.2s;
}

a:hover {
	background-color: #eee;
}

img {
	margin-right: 10px;
}

footer {
	background-color: #333;
	color: #fff;
	padding: 20px;
	text-align: center;
}