DocBook XSLT 2.0 Stylesheet output: emphasis.001.xml

Expected (11 differences)Actual (1 differences)
<html>
   <head>
      <link href="../../resources/css/db-prism.css" rel="stylesheet" type="text/css"/>
      <link href="../../resources/css/default.css" rel="stylesheet" type="text/css"/>
      <link href="../../resources/css/prism.css" rel="stylesheet" type="text/css"/>
      <meta charset="utf-8"/>
      <meta content="DocBook XSL 2.0 Stylesheets Vxxx" name="generator"/>
      <script src="../../resources/js/dbmodnizr.js" type="text/javascript"/>
      <title>Article wrapper</title>
   </head>
   <body>
      <article class="article" id="R.1">
         <header class="article-titlepage">
            <h2>Article wrapper</h2>
         </header>
         <p>This is <em>emphasis</em>.</p>
         <p>Should these variants, with role, be supported?</p>
         <p>This is <strong class="emphasis">bold emphasis</strong>.</p>
         <p>This is <em class="strikethrough">strikethrough emphasis</em>.</p>
         <p>This is <em class="underline">underline emphasis</em>.</p>
         <p>This is <em>nested <em>emphasis</em> inside
emphasis</em>.</p>
      </article>
      <script src="../../resources/js/prism.js"/>
   </body>
</html>
<html>
   <head>
      <link href="../../resources/css/db-prism.css" rel="stylesheet" type="text/css"/>
      <link href="../../resources/css/default.css" rel="stylesheet" type="text/css"/>
      <link href="../../resources/css/prism.css" rel="stylesheet" type="text/css"/>
      <meta charset="utf-8"/>
      <meta content="DocBook XSL 2.0 Stylesheets Vxxx" name="generator"/>
      <script src="../../resources/js/dbmodnizr.js" type="text/javascript"/>
      <title>Article wrapper</title>
   </head>
   <body>
      <article class="article" id="R.1">
         <header class="article-titlepage">
            <h2>Article wrapper</h2>
         </header>
         <div class="content">
            <p>This is <em>emphasis</em>.</p>
            <p>Should these variants, with role, be supported?</p>
            <p>This is <strong class="emphasis">bold emphasis</strong>.</p>
            <p>This is <em class="strikethrough">strikethrough emphasis</em>.</p>
            <p>This is <em class="underline">underline emphasis</em>.</p>
            <p>This is <em>nested <em>emphasis</em> inside
emphasis</em>.</p>
         </div>
      </article>
      <script src="../../resources/js/prism.js"/>
   </body>
</html>
The “current” CSS styling is applied to the this entire document; the results in this column may be anomalous. Also, image links are broken in this column. 

Article wrapper

This is emphasis.

Should these variants, with role, be supported?

This is bold emphasis.

This is strikethrough emphasis.

This is underline emphasis.

This is nested emphasis inside emphasis.

Article wrapper

This is emphasis.

Should these variants, with role, be supported?

This is bold emphasis.

This is strikethrough emphasis.

This is underline emphasis.

This is nested emphasis inside emphasis.

XML source