<!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 