resize divs so they have the same height.

resize.js

<script>
  
  function adjustBoxes() {
  $('.desk-topic').height("auto");
  var elementHeights = $('.desk-topic').map(function() {
  return $(this).outerHeight();
  }).get();
  var maxHeight = Math.max.apply(null, elementHeights);
  $('.desk-topic').height(maxHeight);
  }
  
  $(function() {
  
  $(window).on('resize', function(){
  adjustBoxes();
  });
  
  adjustBoxes();
  
  });
</script>