:first-child

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

CSS :first-child 의사 클래스는 형제 요소 중 제일 첫 요소를 나타냅니다.

css
/* Selects any <p> that is the first element
   among its siblings */
p:first-child {
  color: lime;
}

참고 : 초기 정의에서는 부모가 있는 요소만 선택할 수 있었습니다. Selectors Level 4부터는 이 제한이 사라졌습니다.

구문

Error: could not find syntax for this item

예제

기본 예제

HTML

html
<div>
  <p>This text is selected!</p>
  <p>This text isn't selected.</p>
</div>

<div>
  <h2>This text isn't selected: it's not a `p`.</h2>
  <p>This text isn't selected.</p>
</div>

CSS

css
p:first-child {
  color: lime;
  background-color: black;
  padding: 5px;
}

결과

목록 스타일링

HTML

html
<ul>
  <li>Item 1</li>
  <li>Item 2</li>
  <li>
    Item 3
    <ul>
      <li>Item 3.1</li>
      <li>Item 3.2</li>
      <li>Item 3.3</li>
    </ul>
  </li>
</ul>

CSS

css
ul li {
  color: blue;
}

ul li:first-child {
  color: red;
  font-weight: bold;
}

결과

명세

Specification
Selectors Level 4
# first-child-pseudo

브라우저 호환성

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
:first-child
Matches elements with no parent

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

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