<!DOCTYPE html>
<html>
<head>
  <meta charset=utf-8>
  <title>Unordered List: &lt;ul&gt; &lt;li&gt;</title>
</head>
<body>
  <!-- is block -->
  <ul class="class" id="id" lang="en">
    <li class="class" id="id" lang="en">text</li>
  </ul>

  <!-- is structured inline -->
  <p>paragraph
    <ul class="class" id="id" lang="en">
      <li class="class" id="id" lang="en">text</li>
    </ul>
  </p>

  <!-- can be empty -->
  <ul></ul>
  <ul>
    <li></li>
    <li></li>
  </ul>

  <!-- cannot contain structured inline -->
  <ul>
    <li>some <em>text</em>
	  <pre>more text</pre>
    </li>
  </ul>
  <p>paragraph
    <ul>
      <li>some <em>text</em>
        <pre>more text</pre>
      </li>
    </ul>
  </p>

  <!-- can contain blocks -->
  <ul>
    <li>
      <p>some</p>
      <p>text</p>
    </li>
  </ul>

  <!-- can contain interactive -->
  <ul><li><a>text</a></li></ul>
  <p>paragraph
    <ul><li><a>text</a></li></ul>
  </p>
</body>
</html>