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<html lang="en"><head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script></head><body><div class="container"> <h2>Form control: checkbox</h2> <p>The form below contains three checkboxes. The last option is disabled:</p> <form> <div class="checkbox"> <label><input type="checkbox" value="">Option 1</label> </div> <div class="checkbox"> <label><input type="checkbox" value="">Option 2</label> </div> <div class="checkbox disabled"> <label><input type="checkbox" value="" disabled>Option 3</label> </div> </form></div>