bulma/docs/_includes/index/sponsor.html

<div class="section bd-partners">
  <div class="container">
    <div class="bd-partners-list">
      <div class="bd-partner bd-is-sponsor">
        <p class="bd-partner-title" style="text-align: center;">Sponsors</p>
        <div class="bd-partner-sponsors">
          <div class="bd-partner-sponsor">
            <a href="https://themeisle.com/" target="_blank" rel="nofollow">
              <img src="{{ site.url }}/images/sponsors/themeisle.png" alt="themeisle logo" width="160" height="40">
            </a>
          </div>

          <div class="bd-partner-sponsor">
            <a href="http://tooltwist.com/" target="_blank" rel="nofollow">
              {%
                include elements/responsive-image.html
                path="sponsors/tooltwist"
                extension="png"
                alt="tooltwist logo"
                width="160"
                height="51"
              %}
            </a>
          </div>

          <div class="bd-partner-sponsor">
            <a href="https://www.dontpayfull.com/" target="_blank" rel="nofollow" style="mix-blend-mode: multiply;">
              {%
                include elements/responsive-image.html
                path="sponsors/dontpayfull"
                extension="png"
                alt="DontPayFull logo"
                width="120"
                height="60"
              %}
            </a>
          </div>

          <div class="bd-partner-sponsor">
            <a href="https://hyper.host/" target="_blank" rel="nofollow">
              {%
                include elements/responsive-image.html
                path="sponsors/hyper-host"
                extension="png"
                alt="Hyper Host logo"
                width="150"
                height="50"
              %}
            </a>
          </div>

          <div class="bd-partner-sponsor">
            <a href="https://devsquad.com/" target="_blank" rel="nofollow">
              {%
                include elements/responsive-image.html
                path="sponsors/devsquad"
                extension="png"
                alt="DevSquad logo"
                width="140"
                height="31"
              %}
            </a>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

<div class="section" style="background-color: #fafafa; padding-top: 0;">
  <div class="container">
    <div style="max-width: 300px; margin: 0 auto;">
      <p style="color: #b5b5b5; font-size: 0.875rem; margin-bottom: 1rem; text-align: center;">Ads via Carbon</p>
      {% include elements/carbon.html %}
    </div>
  </div>
</div>