.panel-heading .accordion-toggle:after {
  /* symbol for "opening" panels */
  font-family: 'Glyphicons Halflings'; /* essential for enabling glyphicon */
  content: "\e114"; /* adjust as needed, taken from bootstrap.css */
  float: right; /* adjust as needed */
  color: grey; /* adjust as needed */
}

.panel-heading .accordion-toggle.collapsed:after {
  /* symbol for "collapsed" panels */
  content: "\e080"; /* adjust as needed, taken from bootstrap.css */
}

.panel-group .panel + .panel {
  margin-top: 15px;
}

.panel-default > .panel-heading {
  /*background-color: unset;*/
}

.pb-0 {
  padding-bottom: 0;
}

.mb-0 {
  margin-bottom: 0;
}

.mr-1 {
  margin-right: 4px;
}

.mt-3 {
  margin-top: 1rem;
}

.mt-5 {
  margin-top: 2rem;
}

.fw-bold {
  font-weight: bold;
}

.clickable:hover {
  text-decoration: underline;
}

@media (min-width: 768px) {
  .dl-horizontal dt {
    width: 200px;
  }

  .dl-horizontal dd {
    margin-left: 220px;
  }

  .list-courses {
    column-count: 2;
  }
}