.SubNav {
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
  }
  
  .SubNav span {
    background-color: inherit;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
    font-size: 17px;
  }
  
  .SubNav span:hover {
    background-color: #ddd;
  }
  
  .SubNav span.active {
    background-color: #ccc;
  }


  .SubNavPage {
    display: none;
  }

  .SubNavPageActive {
    display: block;
  }