header nav.navbar .container-fluid {
    background-image: url('../_shared/header2.jpg');
    background-position: center center;
  }

  #table_ex1 th {
    text-align: center;
    vertical-align: middle;
  }

  #table_ex1 td:nth-child(1) {
    font-weight: bold;
    color: #fff;
    background-color: var(--third);;
    vertical-align: middle;
  }


  ol.task ol li {
    list-style-type: lower-alpha;
    margin-bottom: 6px
  }

  .audio-row {
    margin-top: 12px;
    margin-bottom: 12px;
  }

  .audio-row .plyr--audio {
    max-width: 400px;
  }

  .video-heading,
  .audio-heading p {
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .video-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
  }

  #table_ex1,
  #table_ex2{
    margin-top: 24px;
  }