Try it Yourself - Bootstrap form

<!DOCTYPE html>
<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="/lib/bootstrap.min.css">
  <script src="/lib/jquery-1.12.2.min.js"></script>
  <script src="/lib/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
  <h2>Form control: radio buttons</h2>
  <p>The form below contains three radio buttons. The last option is disabled:</p>
  <form role="form">
   <div class="radio">
   <label><input type="radio" name="optradio">Option 1</label>
   </div>
   <div class="radio">
   <label><input type="radio" name="optradio">Option 2</label>
   </div>
   <div class="radio disabled">
   <label><input type="radio" name="optradio" disabled>Option 3</label>
   </div>
  </form>
</div>

</body>
</html>