Phoenix Reisen Styleguide
Example
Markup
<article>
    <span style="display:inline-block; vertical-align: middle"> <!-- span kann weg -->
        <a href="#" class="avatar-cta" title="Buchungsdaten anzeigen">
            <i class="fas fa-user avatar__symbol"></i>
        </a>
    </span>
</article>
Source: src/components/_buttons.scss, line 282