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CSS | :required Selector

The required selector is used to select the required element with the required attribute and set the CSS property. Form elements with a required attribute are defined as required.

Note: This selector is used with form elements, eg. <input>, <select> and <textarea>.

Syntax:

:required {
    // CSS Property
} 

Example:

<!DOCTYPE html>
<html>
    <head>
        <title>:required Selector</title>
        <style>         
            h1 {
                color: green;
            }
            body {
                text-align:center;
            }
            input:required {
                background-color: green;
                color: white;
            }
            form div {
                padding: 10px;
            }
            label {
                display: block;
                font-size: 18px;
            }
            input {
                border: 1px solid black;
                padding: 9px;
                font-size: 18px;
            }
        </style>
    </head>
    <body>
        <h1>GeeksforGeeks</h1>
        <h2>:required selector</h2>
        <form>
            <div>
                <label for="name">Name</label>
                <input type="text" name="name" id="name"/>
            </div>
            <div>
                <label for="email">Email</label>
                <input type="email" name="email" id="email" required />
            </div>
            <div>
                <input type="submit" value="Submit" />
            </div>
        </form
    </body>
</html>                    

Output:
required

Supported Browsers: The browser supported by :required Selector are listed below:

  • Apple Safari 5.0
  • Google Chrome 10.0
  • Firefox 4.0
  • Opera 10.0
  • Internet Explorer 10.0


This article is attributed to GeeksforGeeks.org

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