The :nth-child(n) selector matches every element that is the nth child of its parent. n can be a number, a keyword (odd or even), or a formula (like an + b).
2017年3月1日 — nth child in javascript · 2. Have a look - api.jquery.com/nth-of-type-selector and api.jquery.com/nth-child-selector. – Nikhil Aggarwal · 2.
2024年6月18日 — In other words, the :nth-child() selector selects child elements according to their position among all the sibling elements within a parent ...