1 <div class="jumbotron">
2 <h1 class="display-3">Hello, world!</h1>
3 <p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
5 <p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
7 <a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a>