bulma/docs/_includes/website/banner.html

<div class="launch-code is-animated">
  <h3>
    <a href="https://cssmasterclass.io/" target="_blank"
      ><img
        src="{{site.url}}/assets/images/masterclass/logo-desktop.png"
        height="40"
        width="300"
    /></a>
  </h3>

  <small>
    Learn CSS with 🎓 online interactive courses,📺 educational videos, and
    🧑🏻‍💻project-building tutorials.
  </small>
</div>