Use the .jumbotron class to create a padded grey box with rounded corners.
You can try to run the following code to implement .jumbotron class in Bootstrap.
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet"> <script src = "/scripts/jquery.min.js"></script> <script src = "/bootstrap/js/bootstrap.min.js"></script> </head> <body> <div class = "container"> <div class = "jumbotron"> <h1>Welcome to my website.</h1> <p>This is demo text.</p> <p> <a class = "btn btn-default btn-sm" role = "button">More</a> </p> </div> </div> </body> </html>