title: Placeholder not showing
body: <p>I have this HTML code:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;form method="post"&gt;
      &lt;input class="field_a" name="name" type="text" placeholder="Enter your name here"&gt;&lt;br /&gt;
      &lt;input class="field_a" name="email" type="email" placeholder="And your email is?"&gt;&lt;br /&gt;
      &lt;input class="field_a" name="subject" type="text" placeholder="We need to know what your message is about"&gt;&lt;br /&gt;
      &lt;textarea class="field_b" name="message" rows="10" cols="25" placeholder="Finally, the message.."&gt;&lt;/textarea&gt;&lt;br /&gt;
      &lt;input class="field_c" name="send_mail" type="submit" value="Ready to send your message?"&gt;
  &lt;/form&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>For some reason however, my placeholder isn't showing. Assistance on this would be great.</p>