html {
	color-scheme: light dark;
}
body {
	width: 35em;
	margin: 0 auto;
	font-family: Tahoma, Verdana, Arial, sans-serif;
}
.lib-parent {
	align-items: center;
	height: 100vh;
}
.lib-header {
	text-align: center;
}
.lib-icon {
	display: block;
	margin-left: auto;
	margin-right: auto;
	width: 50%;
	background-color: #eee;
}
.lib-list {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	list-style: none;
	gap: 20px;
}
.lib-list > li > a > button {
	width: 400px;
	height: 100px;
	padding: 20px;
}