text: const $mobileNavButton = $('.sf-navigation__mobileButton');
  
  $mobileNavButton.click(function (e) {
      const $navOverlay = $('.sf-header__navigation')
      if ($navOverlay.hasClass('open'))
      {
          $navOverlay.removeClass('open');
      }
      else
      {
          $navOverlay.addClass('open');
      }
  });