Jumbotron is a standard component of Bootstrap to display some important contents on your website. It is usually used right under the navbar, before the content.
Inside the jumbotron, all grid system, container class and row class also works.
This is a jumbotron with a title, a content and a button.
Code
<div class="jumbotron">
<h1>Title text</h1>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec tortor ipsum, convallis sit.</p>
<p><a class="btn btn-default" href="#" role="button">A button</a></p>
</div>
Result