CLIR footer in Bootstrap

_footer.scss

@import "https://fonts.googleapis.com/css?family=Crimson+Text|Open+Sans";
@import "https://cdn.rawgit.com/clirdlf/logo-fonts/master/style.min.css";
@import "https://cdn.rawgit.com/clirdlf/logo-fonts/master/clir-font/stylesheet.min.css";

@import "../../node_modules/bootstrap/scss/bootstrap.scss";

$clir-burgundy: #A51E36;

.clir-color {
	color: $clir-burgundy;
}
.clir-font {
	font-family: "A028", serif;
}

.logo {
	font-size: 22px;
	letter-spacing: 1px;
	margin-bottom: 0;
}

footer {

    a {
        &.btn {
            @include button-variant($clir-burgundy, $clir-burgundy);
        }
    }
}

footer.njk

<footer class="bg-light" class="mt-4 pt-4">

    <div class="container" role="contentinfo">
        <div class="row mb-3">
            <div class="col-md-4 col-sm-12">
                <a target="_blank" href="https://www.clir.org/">
                    <img class="my-3" width="80px" alt="CLIR logo" src="{{'/assets/images/logo.png' | url }}">
                </a>
                <p>
                    <strong>Council on Library and Information Resources<br></strong>
                    <div class="adr">
                        <div class="street-address">1800 Diagonal Road, Suite 600<br></div>
                        <span class="locality">Alexandria</span>, <span class="region">VA</span> <span class="postal-code">22314</span>
                    </div>
                </p>
            </div>

            <div class="col-md-4 col-sm-12">

                <h2 id="about" class="my-4">About</h2>
            
                <p>CLIR is an independent, nonprofit organization that forges strategies to enhance research, teaching, and learning environments in collaboration with libraries, cultural institutions, and communities of higher learning.</p>
                <p>
                    <a target="_blank" href="https://www.clir.org/privacy">Privacy</a>
                </p>
            </div>
            <div class="col-md-4 col-sm-12">

                <h2 id="follow-us" class="my-4">Follow Us</h2>

                <a 
                    class="btn btn-primary btn-floating m-1"
                    href="https://www.facebook.com/pages/Council-on-Library-and-Information-Resources-CLIR/300100435096"
                    role="button">
                    <i class="fab fa-facebook-f"></i><span class="visually-hidden">Facebook</span>
                </a>

                <a 
                    class="btn btn-primary btn-floating m-1"

                    href="https://twitter.com/clirnews"
                    role="button">
                    <i class="fab fa-twitter"></i><span class="visually-hidden">Twitter</span>
                </a>

                <a 
                    class="btn btn-primary btn-floating m-1"

                    href="http://www.youtube.com/user/DLFCLIR?blend=2&amp;ob=0"
                    role="button">
                    <i class="fab fa-youtube"></i><span class="visually-hidden">YouTube</span>
                </a>

                <a 
                    class="btn btn-primary btn-floating m-1"

                    href="https://www.linkedin.com/company/6203386/"
                    role="button">
                    <i class="fab fa-linkedin"></i><span class="visually-hidden">LinkedIn</span>
                </a>


            </div>
        </div>
    </div>

    <div class="container border-top py-3">
        <div class="row">
            <div class="col-md-3">
                <div class="footer-alt">
                    <p class="logo">
                        <a href="https://www.clir.org/" class="text-decoration-none" target="_blank">
                            <span class="clir clir-font clir-color">CLIR</span>
                        </a>
                    </p>
                </div>
            </div>
            <div class="col-md-9">
                <p class="text-end">Unless otherwise indicated, content on this site is available for re-use under <a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode">CC BY-SA 4.0 License</a>.</p>
            </div>
        </div>
    </div>
</footer>