jQuery UI Selectmenu width Option

jQuery UI consists of GUI widgets, visual effects, and themes implemented using HTML, CSS, and jQuery. jQuery UI is great for building UI interfaces for the webpages.
The jQuery UI Selectmenu width option is used to set the width of the options menu in pixels. If the width value is set to null, the width of the native select is used.

Syntax:

$( ".selector" ).selectmenu({
  width: val
});

CDN Link: First, add jQuery UI scripts needed for your project.

<link rel=”stylesheet” href=”//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”//code.jquery.com/jquery-1.12.4.js”></script>
<script src=”//code.jquery.com/ui/1.12.1/jquery-ui.js”></script>

Example:

HTML

<!doctype html>
<html lang="en">
  
<head>
    <meta charset="utf-8">
    <link rel="stylesheet" href=
    "//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src="//code.jquery.com/jquery-1.12.4.js"></script>
    <script src="//code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
    <style>
        label {
            display: block;
        }
    </style>
</head>
  
<body>
    <h1 style="color: green;">GeeksforGeeks</h1>
  
    <h3>jQuery UI Selectmenu width option</h3>
  
    <label for="sub">Select Computer Subject:</label>
  
    <select name="sub" id="sub">
        <option value="Slower">HTML</option>
        <option value="Slow">CSS</option>
        <option value="Medium">JavaScript</option>
        <option value="Fast">Java</option>
        <option value="Faster">Python</option>
    </select>
  
    <script>
        $("#sub").selectmenu({
            width: 300
        });
    </script>
</body>
  
</html>