Template:Sticky header/styles.css

.sticky {
	position: sticky;
	top: 0;
}

body.vector-sticky-header-visible .sticky {
	top: 3.125rem;
}

.sticky-header > thead {
	position: sticky;
	top: 0;
}

body.vector-sticky-header-visible .sticky-header > thead {
	top: 3.125rem;
}