ol {
	block-size: 9rem;
	display: flex;
	flex-wrap: wrap;
}

ol:nth-child(1) { gap: 1rem; }
ol:nth-child(2) { row-gap: 1rem; }
ol:nth-child(3) { column-gap: 1rem; }
ol:nth-child(4) { gap: 1rem 1rem; } /* Shorthand. */

ol:nth-child(5) {
	justify-content: space-between;
	align-content: space-between;
	gap: 1rem; /* No effect, here! */
}