linked to Clever logo from https://assets.clever.com/website/press_kit/clever-blue-logo.png

affiliations.html

<style>
 .mostlyFill{width: 90%;}
 .rowFill{text-align: center;}
 .topRow{width: 33%; vertical-align: middle;display: table-cell}
 .bottomRow{width: 25%; vertical-align: middle;display: table-cell}
</style>
<div class="rowFill"> 
  <div class="topRow">
   <a href="https://www.inria.fr/">
    <img class="mostlyFill"
     id="Inria" 
     src="https://privacypatterns.eu/images/logo_INRIA.78339319.png">
   </a>
  <div class="topRow">Daniel Le Métayer</div></div>
  <div class="topRow">
  <a href="http://www.clever.com/">
   <img class="mostlyFill"
     id="Clever Inc." 
     src="https://assets.clever.com/website/press_kit/clever-blue-logo.png">
  </a>
  <div class="topRow">Mohit Gupta</div></div>
  <div class="topRow">
   <a href="http://www.ru.nl">
   <img class="mostlyFill"
     id="Radboud University" 
     src="https://privacypatterns.eu/images/logo_radboud.3ee866f6.png">
   </a>
  <div class="topRow">Michael Colesky
   <br>Jaap-Henk Hoepman</div></div>
 </div>
<div class="rowFill">
 <div class="bottomRow">
  <a href="http://www.upm.es">
   <img class="mostlyFill"
     id="Universidad Politécnica de Madrid" 
     src="https://privacypatterns.eu/images/logo_upm.9e0a2d86.jpg">
  </a>
  <div class="bottomRow">José M. del Álamo
   <br>Yod Samuel Martín</div>
 </div>
 <div class="bottomRow">
  <a href="https://www.uni-ulm.de/">
   <img class="mostlyFill"
     id="Ulm University" 
     src="https://privacypatterns.eu/images/logo_ulm.5188e6a3.png">
  </a>
  <div class="bottomRow">Christoph Boesch<br>
   Frank Kargl<br>Henning Kopp<br>Patrick Mosby </div>
 </div>
 <div class="bottomRow">
  <a href="http://www.berkeley.edu/">
   <img class="mostlyFill"
     id="University of California, Berkeley" 
     src="https://privacypatterns.eu/images/logo_ucb.391ac1d4.png">
  </a>
  <div class="bottomRow">Nicholas Doty</div>
 </div>
 <div class="bottomRow">
  <a href="https://www.wu.ac.at">
   <img class="mostlyFill"
     id="Vienna University of Economics and Business" 
     src="https://privacypatterns.eu/images/logo_vienna.a59f7a9f.png">
  </a>
  <div class="bottomRow">Olha Drozd</div>
 </div>
</div>