bulma/docs/_includes/index/sponsor.html

<div class="section bd-partnrs">
  <div class="container">
    <div class="bd-partnrs-list">
      <div class="bd-partner bd-is-sponsor">
        <p class="bd-partner-title">Sponsors</p>

        <div class="bd-partner-sponsors">
          {% for sponsor_id in site.data.sponsors.list %}
            {% assign sponsor = site.data.sponsors.by_id[sponsor_id] %}
            {% assign sponsor_path = "sponsors/" | append: sponsor_id %}
            {% assign sponsor_alt = sponsor.name | append: " logo" %}

            <div class="bd-partner-sponsor">
              <a
                href="{{ sponsor.url }}"
                target="_blank"
                rel="nofollow"
                {% if sponsor.blend %}style="mix-blend-mode: multiply;"{% endif %}
                >
                {%
                  include elements/responsive-image.html
                  path=sponsor_path
                  extension="png"
                  alt=sponsor_alt
                  width=sponsor.width
                  height=sponsor.width
                %}
              </a>
            </div>
          {% endfor %}
        </div>
      </div>

      <div class="bd-partner bd-is-carbon">
        <p class="bd-partner-title">Ads via Carbon</p>
        <div class="bd-partner-carbon">
          {% include elements/carbon.html %}
        </div>
      </div>
    </div>
  </div>
</div>