<style>
  #navigator {
    position: sticky;
    top: 0;
    z-index: 1000;
  }

  #navigator .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(0, 0, 0, 0.5)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
  }

  @media (max-width: 720px) {
    #navigator {
      border-bottom: 1px solid #ccc;
    }
  }

  #navigator a {
    font-si