Web1. dec 2024 · CSSの:first-childや:last-childは擬似クラスと呼ばれるものでそれぞれ :first-childは兄弟要素の最初の要素 :last-childは兄弟要素の最後の要素 を表します。 :first-child CSSの:first-childは兄弟要素の中で最初の要素を表す擬似クラスです。 :first-childの構文や使い方、:first-of-typeとの違いについてサンプルコード付きで解説します。 :last-child … WebGet the first child element To get the first child element of a specified element, you use the firstChildproperty of the element: letfirstChild = parentElement.firstChild; Code language:JavaScript(javascript) If the parentElementdoes not have any child element, the firstChildreturns null.

CSS选择器之div:first-child&div :first-child - CSDN博客

Web21. feb 2024 · p:nth-child(1) or p:nth-child(0n+1) Represents every WebCSS:first-child 의사 클래스는 형제 요소 중 제일 첫 요소를 나타냅니다. /* Selects any the source sherway gardens

:not(:first-child)和:not(:last-child)的用法_Sfh_11的博客-CSDN博客

that is the first element in a group of siblings. This is the same as the :first-child selector (and has the … Web6. sep 2011 · The :first-child selector allows you to target the first element immediately inside another element. It is defined in the CSS Selectors Level 3 spec as a “structural pseudo-class”, meaning it is used to style content based on … Web14. jún 2024 · You can use :first-child if you want to get the first child of its parent target.querySelector ('span:first-child'); Or you can use :first-of-type if you want to specify the type like in your case is a span target.querySelector ('span:first-of-type'); See example: myrtleford police station