Jumbotron optionally captures the whole viewport and renders the contents inside. A jumbotron is displayed as a grey box with rounded corners. It also enlarges the font sizes of the text inside it.
Inside a jumbotron you can put nearly any valid HTML, including other Bootstrap elements/classes. Place the jumbotron inside the <div class="container"> if you want the jumbotron to NOT extend to the edge of the screen.
Jumbotron example,
<!DOCTYPE html> <html lang="en"> <head> <title>My first Bootstrap page </title> <meta name="viewport" content="width=device-width, initialscale=1"> <link href="CSS/bootstrap.min.css" rel="stylesheet"> <link href="CSS/bootstrap-theme.min.css" rel="stylesheet"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script> <script type="text/javascript" src="JS/bootstrap.min.js"></script> </head> <body> <div class="container" style="margin:50px;"> <div class="container"> <div class="jumbotron" style="background:#ebeff2"> <h1 style="font-size:130px;">400!</h1> <h2>Sorry but the page that you looking for does not exist..</h2> <a href="/index.html" class="btn btn-warning btn-lg">Go to Home Page</a> </div> </div> </body> </html>
Output,