1. The footer element represents a footer for its nearest ancestor
   sectioning content

   W3C: sectioning content
   or
2. A footer typically contains information about its section such as
   1. who wrote it
   2. links to related documents
   3. copyright data, and the like
3. Contact information for the author or editor of a section belongs in an address element, possibly itself inside a footer
4. When the footer element contains entire sections, they represent
   1. appendices
   2. indexes
   3. long colophons
   4. verbose license agreements
   5. other such content
5. The footer element is not sectioning content; it doesn't introduce a new section

HTML

<h3>FIFA World Cup top goalscorers</h3>
<ol>
    <li>Miroslav Klose, 16</li>
    <li>Ronaldo Nazário, 15</li>
    <li>Gerd Müller, 14</li>
</ol>

<footer>
    <small>
        Copyright © 2023 Football History Archives. All Rights Reserved.
    </small>
</footer>

Browser

1. 1. Sectioning content is content that defines the scope of headings and footers.
   2. tags
      1. article
      2. aside
      3. nav
      4. section
2. 1. Certain elements are said to be sectioning roots including blockquote and td elements
   2. These elements can have their own outlines, but the sections and headings inside these elements do not contribute to the outlines of their ancestors
   3. tags
      1. blockquote
      2. body
      3. details
      4. fieldset
      5. figure
      6. td