CSS :first-child Pseudo Class

CSS :first-child Pseudo Class

CSS :first-child Pseudo Class


The CSS:first-child pseudo-class selects the element if it is the first child among other elements.

The:first-of-type selector can be used if the user wants to select and apply the style on the first paragraph. The:first-child selector is actually similar to first-of-type but there is a difference: it is less specific. The:first-child matches only the first child of a parent element whereas first-of-type matches the specified element’s child even if it is not the first one.

Version 

Selectors Level 4

Selectors Level 3

CSS Level 2

Syntax

:first-child {
  css declarations;
}

Example of the :first-child pseudo-class with the <p> tag:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      p:first-child {
        background-color: #1c87c9;
        color: #fff;
      }
    </style>
  </head>
  <body>
    <p>Lorem ipsum is simply dummy text...</p>
    <h2>First-child selector example</h2>
    <p>Lorem Ipsum is simply dummy text...</p>
  </body>
</html>

Example of the :first-child pseudo-class with the <li> tag:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      li:first-child {
        background: #8ebf42;
      }
    </style>
  </head>
  <body>
    <h2>:first-child selector example</h2>
    <ul>
      <li>Paris</li>
      <li>Moscow</li>
      <li>Rome</li>
    </ul>
    <ol>
      <li>Paris</li>
      <li>Moscow</li>
      <li>Rome</li>
    </ol>
  </body>
</html>

Example of the first:child pseudo-class with the <ol> tag:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      ol:first-child {
        background: #8ebf42;
      }
    </style>
  </head>
  <body>
    <ol>
      <li>London</li>
      <li>Paris</li>
      <li>Rome</li>
    </ol>
    <ol>
      <li>London</li>
      <li>Paris</li>
      <li>Rome</li>
    </ol>
  </body>
</html>

Example of the :first-child pseudo-class with the <em> tag:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      p em:first-child {
        background: #82b534;
      }
    </style>
  </head>
  <body>
    <h2>:first-child selector example</h2>
    <article>
      <p>Here is a <em>some</em> text. This is a <em>example</em>.</p>
      <p>Here is a <em>some</em> text. This is a <em>example</em>.</p>
      <p>Here is a <em>some</em> text. This is a <em>example</em>.</p>
    </article>
  </body>
</html>

Example of the :first-child pseudo-class with the <ul> tag:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      ul li {
        color: blue;
      }
      ul li:first-child {
        color: #8ebf42;
        font-weight: bold;
      }
    </style>
  </head>
  <body>
    <h2>:first-child selector example</h2>
    <ul>
      <li>List Item 1</li>
      <li>List Item 2</li>
      <li>
        List Item 3
        <ul>
          <li>List Item 3.1</li>
          <li>List Item 3.2</li>
          <li>List Item 3.3</li>
        </ul>
      </li>
    </ul>
  </body>
</html>
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