Position nth-child(n of <selector>)
About
The :nth-child()
pseudo-class supports an of <selector>
syntax. It finds the elements matching the specified selector and then matches the elements based in their position in that filtered set of elements.
Paragraphs only
The selector :nth-child(3n + 1 of p)
finds all paragraphs (of p
) and then matches the first and every third paragraph.