Footer
This example does not include a complete list of site links in the footer, as which links are included and how they are named can be changed. It only includes a home page link.
HTML:
<footer class="global-footer">
<div class="l-center">
<div class="global-footer__links">
<div class="l-cluster">
<ul class="clean-list" role="list">
<li><a href="/">Home</a></li>
</ul>
</div>
<ul class="clean-list" role="list">
<li><a class="with-icon--larger" href="https://w3c.social/@w3c" hreflang="en">
<img class="icon icon--larger" src="/dist/assets/svg/mastodon.svg" width="20"
height="20" alt aria-hidden="true" loading="lazy"/>
<span class="visuallyhidden">W3C on Mastodon</span></a>
</li>
<li><a class="with-icon--larger" href="https://github.com/w3c/" hreflang="en">
<img class="icon icon--larger" src="/dist/assets/svg/github.svg" width="20"
height="20" alt aria-hidden="true" loading="lazy"/>
<span class="visuallyhidden">W3C on GitHub</span></a>
</li>
</ul>
</div>
<p class="copyright">Copyright © 20XX <a href="https://www.w3.org/">World Wide Web Consortium</a>.<br>
<abbr title="World Wide Web Consortium">W3C</abbr><sup>®</sup>
<a href="https://www.w3.org/policies/#disclaimers">liability</a>,
<a href="https://www.w3.org/policies/#trademarks">trademark</a> and
<a rel="license" href="https://www.w3.org/copyright/software-license/" title="W3C Software License">permissive license</a>
rules apply.</p>
</div>
</footer>
Considerations
Note the use of the center layout and cluster layout.
Also note the incidence of a <span class="visuallyhidden">
to provide accessible text labels for icon links.