Bootstrap .btn-lg class

To make a large button, use the .btn-lg class in Bootstrap.

You can try to run the following code to implement the btn-lg class

Example

<!DOCTYPE html>
<html>
   <head>
      <title>Bootstrap Example</title>
      <meta name = "viewport" content = "width=device-width, initial-scale = 1">
      <link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">
      <script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
   </head>
   <body>
      <button type = "button" class = "btn btn-default btn-lg">
         Large button
      </button>
   </body>
</html>