<div id="sponsors" class="container text-center">
  <h2>Sponsors</h2>
  <div class="row">
    <div class="col-lg-12">
      <div class="col-md-6">
        <ul class="nav nav-pills nav-stacked">
          <h3>LEGO Education</h3>
          <li><a href="http://education.lego.com/"><img class="logo" alt="Logo LEGO Education" src="img/legoEducation.png" /></a></li>
        </ul>
      </div>
      <div class="col-md-6">
        <ul class="nav nav-pills nav-stacked">
          <h3>Polytech Instrumentation</h3>
          <li><a href="http://www.polytech-instrumentation.fr/"><img class="logo" alt="Logo Polytech Instrumentation" src="img/polytechInstrumentation.png" /></a></li>
        </ul>
      </div>
    </div>
  </div>
</div>