https://stevestivers.com/wp-content/themes/stivers-2017/js/responsive-menu.js?ver=1.0.0

1( function(window, $, undefined) {
2    'use strict';
3    
4    $('nav').before('<button class="menu-toggle" role="button" aria-pressed="false"></button>'); // Add toggles to menus
5    $('nav .sub-menu').before('<button class="sub-menu-toggle" role="button" aria-pressed="false"></button>'); // Add toggles to sub menus
6    
7    // Show/hide the navigation
8    $('.menu-toggle').on('click', function() {
9        var $this = $(this);
10        $this.attr('aria-pressed', function(index, value) {
11            return 'false' === value ? 'true' : 'false';
12        });
13        
14        $this.toggleClass('activated');
15		setTimeout(function() {$('.content-wrap').toggleClass('reduced_z_index');}, 100);
16        $this.next('nav, .sub-menu').slideToggle('fast', function() {
17            // Allow menu to become inline block rather than displayNone when resizing (mostly relevant for iPad)
18            $this.next('nav, .sub-menu').css('display', '').toggleClass('displayNone displayBlock');
19        });
20    });
21	$('.sub-menu-toggle').on('click', function() {
22		var $this = $(this);
23		$this.toggleClass('activated');
24		$this.attr('aria-pressed', function(index, value) {
25            return 'false' === value ? 'true' : 'false';
26        });
27		$this.next('.sub-menu').slideToggle(200, function() {
28		// Allow menu to become inline block rather than displayNone when resizing (mostly relevant for iPad)
29		$this.next('.sub-menu').toggleClass('displayNone displayBlock');
30        });
31	});
32})(this, jQuery);