Footer: Slim

<footer class="usa-footer usa-footer--slim">
    <div class="grid-container usa-footer__return-to-top">
        <a href="#">Return to top</a>
    </div>
    <div class="usa-footer__primary-section">
        <div class="usa-footer__primary-container grid-row">
            <div class="mobile-lg:grid-col-8">
                <nav class="usa-footer__nav" aria-label="Footer navigation">
                    <ul class="grid-row grid-gap">
                        <li class="mobile-lg:grid-col-6 desktop:grid-col-auto usa-footer__primary-content">
                            <a class="usa-footer__primary-link" href="javascript:void(0);">Primary link</a>
                        </li>
                        <li class="mobile-lg:grid-col-6 desktop:grid-col-auto usa-footer__primary-content">
                            <a class="usa-footer__primary-link" href="javascript:void(0);">Primary link</a>
                        </li>
                        <li class="mobile-lg:grid-col-6 desktop:grid-col-auto usa-footer__primary-content">
                            <a class="usa-footer__primary-link" href="javascript:void(0);">Primary link</a>
                        </li>
                        <li class="mobile-lg:grid-col-6 desktop:grid-col-auto usa-footer__primary-content">
                            <a class="usa-footer__primary-link" href="javascript:void(0);">Primary link</a>
                        </li>
                    </ul>
                </nav>
            </div>
            <div class="mobile-lg:grid-col-4">
                <address class="usa-footer__address">
                    <div class="grid-row grid-gap">
                        <div class="grid-col-auto mobile-lg:grid-col-12 desktop:grid-col-auto">
                            <div class="usa-footer__contact-info">
                                <a href="tel:1-800-555-5555">(800) CALL-GOVT</a>
                            </div>
                        </div>
                        <div class="grid-col-auto mobile-lg:grid-col-12 desktop:grid-col-auto">
                            <div class="usa-footer__contact-info">
                                <a href="mailto:info@agency.gov">info@agency.gov</a>
                            </div>
                        </div>
                    </div>
                </address>
            </div>
        </div>
    </div>
    <div class="usa-footer__secondary-section">
        <div class="grid-container">
            <div class="usa-footer__logo grid-row grid-gap-2">
                <div class="grid-col-auto">
                    <img class="usa-footer__logo-img" src="../../dist/img/logo-img.png" alt="">
                </div>
                <div class="grid-col-auto">
                    <h3 class="usa-footer__logo-heading">Name of Agency</h3>
                </div>
            </div>
        </div>
    </div>
</footer>