footer_custom.html

<style>
  .footer-logo {
    display: flex;
    align-items: center;
  }
  .footer-logo img.tu-delft {
    height: 30px;
    width: auto;
  }
  .footer-logo img.mude {
    height: 35px;
    width: auto;
    margin-left: 15px;
  }
  .footer-text {
    font-size: 14px;
    margin-top: 5px;
  }
</style>

<div class="footer-logo">
  <img class="tu-delft" src="{{ site.footer_logo | relative_url }}" alt="TU Delft Logo">
  <img class="mude" src="{{ site.logo | relative_url }}" alt="MUDE Logo">
</div>
<div class="footer-text">
  The MUDE Team &copy; 2024 <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>
</div>