/* Other styles are the same as before. */

h2 {
	inset-block-start: 0;
	inset-inline-start: 0;
	position: sticky;
}

/* Just so they clip/“peek” their containers. */
section:nth-child(2) h2 { margin-block-start: 1.5em }

section:nth-child(3) h2 { margin-inline-start: 66% }