CSS | :first-child Selector

The :first-child selector is used to select those elements which are the first-child elements. For :first-child selector the <!DOCTYPE> must be declared for IE8 and earlier versions.

Syntax:

:first-child {
    // CSS property
} 

Example 1:



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<!DOCTYPE html>
<html>
    <head>
        <title>first child selector</title>
        <style>
            h1 {
                color:green;
            }
            p:first-child {
                background-color: green;
                color:white;
                font-weight:bold;
            }
            body {
                text-align:center;
            }
        </style>
    </head>
    <body>
        <p>GeeksforGeeks</p>
        <h1>GeeksforGeeks</h1>
        <h2>:first-child Selctor</H2>
        <p>GeeksforGeeks</p>
        <div>
            <p>GFG</p>
            <p>Geeks</p>
        </div>
    </body>
</html>                    

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Output:

Example 2:

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<!DOCTYPE html>
<html>
    <head>
        <title>first child selector</title>
        <style>
            h1 {
                color:green;
            }
            h1, h2 {
                text-align:center;
            }
            li:first-child {
                background: green;
            
            body {
                width:70%;
            }
        </style>
    </head>
    <body>
        <h1>GeeksforGeeks</h1>
        <h2>:first-child Selector</h2>
        <ul>
            <li>Data Structure</li>
            <li>Computer Network</li>
            <li>Operating System</li>
        </ul>
        <ol>
            <li>Java</li>
            <li>Ruby</li>
            <li>Pascal</li>
        </ol>
    </body>
</html>                    

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Output:

Supported Browsers: The browser supported by :first-child selector are listed below:

  • Apple Safari 3.1
  • Google Chrome 4.0
  • Firefox 3.0
  • Opera 9.6
  • Internet Explorer 7.0

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