.book-table-of-contents {
	padding: 1rem 0;
	position: sticky;
	top: 0;
	align-self: flex-start;
	poistion
	h2 {margin-block-end: 1rem;}
	ul {padding-left: 1.5rem;}
	li {margin-block-end: 0.75rem;}
}

@media (max-width: 781px) {
	.book-table-of-contents {
		position: static;
	}
}