Sections:
    1 First headingXYZ (item1)
    2 Second headingXYZ (item2)
    Third headingXYZ (item3)
    Fourth headingXYZ (item4)
Figures:
Tables:
<html>
  <head>
    <style>
    </style>
  </head>
  <body>
    <h1 id="item1">
      First heading
      XYZ
    </h1>
    <h1 id="item2">
      Second heading
      XYZ
    </h1>
    <h1 class="Unnumbered" id="item3">
      Third heading
      XYZ
    </h1>
    <h1 class="Unnumbered" id="item4">
      Fourth heading
      XYZ
    </h1>
    <p>
      First ref: Section
      <a href="#item1">1</a>
    </p>
    <p>
      Second ref: Section
      <a href="#item2">2</a>
    </p>
    <p>
      Third ref: Section
      <a href="#item3">Third headingXYZ</a>
    </p>
    <p>
      Fourth ref: Section
      <a href="#item4">Fourth headingXYZ</a>
    </p>
    <p><a href="#item1">1</a></p>
    <p><a href="#item2">2</a></p>
    <p><a href="#item3">Third headingXYZ</a></p>
    <p><a href="#item4">Fourth headingXYZ</a></p>
  </body>
</html>