<div class="card sidebar mb-3">
    <div class="card-body">
        <p class="card-text">
            <a class="btn btn-primary" href="{{ site.data.author.publickey_gpg | relative_url }}">
                <span class="far fa-key"></span>&nbsp;Download public key
            </a><br>
            Fingerprint of my GPG key:<br>
            <code>{{ site.data.author.fingerprint_gpg }}</code>
        </p>

    </div>
</div>