A :nth-child(An+B [of S]?) polyfill 感谢 CSS :has() Posted on 2022-12-15 :has() 选择器不仅仅是一个“父选择器”…… 原文： https://www.bram.us/2022/12/14/a-nth-childanb-of-s-polyfill-thanks-to-css-has/