Footer navigation is missing styles for mobile
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3561053. -->
Reported by: [circuitcipher](https://www.drupal.org/user/3849396)
Related to !109
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>The footer navigation is missing the CSS classes for mobile styling. This causes the mobile styling to be broken.</p>
<p>See image below:<br>
<img src="https://www.drupal.org/files/issues/2025-12-02/Screenshot%202025-12-02%20at%208.41.22%E2%80%AFAM.png" alt="Broken nav"></p>
<p>How it should look:<br>
<img src="https://www.drupal.org/files/issues/2025-12-02/Screenshot%202025-12-02%20at%209.35.20%E2%80%AFAM.png" alt="Correct navigation"></p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<p>1. Create a Drupal site and install and use UI Suite USWDS theme<br>
2. Make sure your site has a footer menu<br>
3. Either use developer tools to display the site as mobile or view on phone<br>
4. Observe that mobile styling of footer is broken</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Apply the appropriate mobile styles based on <a href="https://designsystem.digital.gov/components/footer/">USWDS component documentation</a></p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<p>Create MR.</p>
<h3 id="summary-ui-changes">User interface changes</h3>
<p>The navigation displays properly</p>
<h3 id="summary-api-changes">API changes</h3>
<p>None</p>
<h3 id="summary-data-model-changes">Data model changes</h3>
<p>None</p>
issue