.twisty:hover {
      background-color: #f0f0f0;
      border: 1px solid #e0e0e0;
      margin-left: -1px;
    }

    .collapsible {
    margin-top: 5px;
    }

    .collapsible a:link {
      color: #666666;
    }

    .collapsible a img {
      border: none;
    }
    
    .collapsible>div{
      border-left: 1px dashed #c0c0c0;
      margin: 2px;
    }

    .collapsible>div>div{
      padding: 6px;
    }

    .collapsible a {
      color: #3465a4;
      text-decoration: none;
      font-weight: bold;
    }