anchor.diff:  </nav>
   ----
   
  +=== Block Elements
  +
  +==== Paragraph
  +
  +*Legacy DB element*: <para> or <simpara>
  +
  +*New HTML element*: <p>
  +
  +*Special semantics*: in most cases, none--but we may define classes in specific circumstances; e.g., <p class="biblioentry">
  +
  +*Example*:
  +
  +----
  +<p>Nothing exciting here. Move on, yo!</p>
  +----
  +
  +==== Sidebar
  +
  +*Legacy DB element*: <sidebar>
  +
  +*New HTML element*: <aside>
  +
  +*Special semantics*: class="sidebar"
  +
  +*Example*:
  +
  +----
  +<aside class="sidebar">
  +  <!-- Optional h5 for sidebar title -->
  +  <h5 class="title">Amusing Digression</h5>
  +  <p>Did you know that in Boston, they call it "soda", and in Chicago, they call it "pop"?</p>
  +</aside>
  +----
  +
  +==== Admonitions
  +
  +*Legacy DB element*: <note>, <tip>, <warning>, <caution>, <important>
  +
  +*New HTML element*: <div>
  +
  +*Special semantics*: class="note" or class="warning" (these are the two admon values in the EPUB 3 Structural Semantics Vocabulary spec; we can always define more if note/warning do not suffice)
  +
  +*Note*: Given the current state of EPUB 3 support, we will likely need to transform back to <div> in EPUB output order to ensure backward compatibility in EPUB 2 readers
  +
  +*Example*:
  +
  +----
  +<div class="note">
  +  <p>Type "hubot kitteh" to get a picture of an adorable cat</p>
  +</div>
  +----
  +
  +==== Sections
  +
  +*Legacy DB element*: <section>, <sect1>, <sect2>, <sect3>, <sect4>, <sect5>
  +
  +*New HTML element*: <section>
  +
  +*Special semantics*: class="sect1", class="sect2", class="sect3", class="sect4", class="sect5"
  +
  +*Note*: EPUB 3 Structural Semantic Vocabulary only has the term "division" for sections, and has no semantics for different section levels, so the above semantics are pulled directly from DocBook (operating on the assumption that semantics for section level are valuable in CSS, such that we don't need to write selectors like:
  +
  +----
  +section section section section { font-size: 50% }
  +----
  +
  +*Note 2*: Proposed use of HTML heading elements for sections is as follows:
  +
  +----
  +sect1 -> h1
  +sect2 -> h2
  +sect3 -> h3
  +sect4 -> h4
  +sect5 -> h5
  +----
  +
  +*Note 3*: Given the current state of EPUB 3 support, we will likely need to transform back to <div> in EPUB output order to ensure backward compatibility in EPUB 2 readers
  +
  +*Example*:
  +
  +----
  +<section class="sect1">
  +  <h1>A-Head</h1>
  +  <p>If you httpparty, you must party hard</p>
  +  <!-- Some more paragraphs -->
  +  <section class="sect2">
  +    <h2>B-Head</h2>
  +    <p>What's the frequency, Kenneth?</p>
  +    <!-- And so on... -->
  +  </section>
  +</section>
  +----
  +
  
positive.code: ----
  <section class="dedication">
    <!-- optional h1 used for dedication titles -->
    <h1>Dedication Title</h1>
    <p>I owe it all to Project Unicorn</p>
  </section>
  ----
  
negative.code: 
  ----
  <nav class="toc" epub:type="toc">
    <h1 class="title">Table of Contents</h1>
     <ol>
       <li><a href="examples_page.html">A Note Regarding Supplemental Files</a></li>
       <li><a href="pr02.html">Foreword</a></li>
  