change color of nav menu dropdown webflow code example

Example 1: how to change the color of back button navbar xcodee

self.navigationController.navigationBar.tintColor = UIColor.whiteColor();

Example 2: javascript on scroll change nav color

$(function () {
  $(document).scroll(function () {
    var $nav = $(".navbar-fixed-top");
    $nav.toggleClass('scrolled', $(this).scrollTop() > $nav.height());
  });
});