The following code shows how to create page header with sub header.
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<!-- www. j a va 2 s . co m-->
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Chapter 3 <small>Exploring Bootstrap Components</small></h1>
</div>
<hr>
</body>
</html>