<div class="chapter">
   <div class="page">
      <h1>This Is a Chapter Title</h1>
      <h2>This is a chapter description.</h2>
  </div>
  <div class="section">
    <div class="page">
      <h1>This Is a Section Title</h1>
      <p>This is a section paragraph.</p>
      <p>This is another section paragraph.</p>
    </div>
  </div>
</div>

External CSS

  1. http://digitallearning.esc4.net/pixels4kids/codepen/Html_CSS_Javascript_and_the_Awesome_jQuery/css/book.css

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js