WebMay 18, 2024 · Using :nth-child () :nth-child () is a CSS pseudo-class that’s supported in all major browsers and in legacy browsers including IE9. MDN defines its behavior as “match [ing] elements based on their position in a group of siblings.”. In addition to its original intended use in CSS stylesheets, it’s ubiquitous in test automation scripts ... WebApr 13, 2024 · 类名:nth-child(even)选择此类里的偶数个子孩子odd奇数. nth-child(n)选择了所有孩子,且只能是n,带n的公式也行. 类名 div:nth-child(1),找类下边第一个孩子 …
23413学习记录_姜 匿的博客-CSDN博客
WebSep 6, 2011 · :nth-child iterates through elements starting from the top of the source order. The only difference between it and :nth-last-child is that the latter iterates through … Web使用公式(an+ b).描述:a代表一个循环的大小,N是一个计数器(从0开始),以及b是偏移量。. 在这里,我们对所有索引是3的倍数的p元素指定了背景颜色:. p:nth-child(3n+0) { background:#ff0000; } 尝试一下 ». 完整CSS选择器参考手册. CSS 参考手册. CSS 听觉参考 … irr of the resa law
:nth-last-child() - CSS: Cascading Style Sheets MDN - Mozilla …
WebThe index of each child to match. Must be a number. The first element has the index number 1. even: Selects each even child element: odd: Selects each odd child element: formula: Specifies which child element(s) to be selected with a formula (an + b). Example: p:nth-child(3n+2) selects each 3rd paragraph, starting at the 2nd child element WebJan 26, 2024 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams WebCSS :nth-child () is a pseudo-class selector used to select children based on their position in a group of siblings. In other words, the :nth-child () css chooses elements depending on their position, regardless of their parent's type. The position is specified using n, which can be a number, keyword, or functional notation. irr of the nbcp