Use .jumbotron to call an extra attention to some special content or information.
HTML Online Editor
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<h1 class="display-4">Hello, world!</h1>
<p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
<p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
<a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a>