Divi Mobile Menu Collapse Effect

/********* Mobile Menu Collapse ********/
  
/**** This hides the sub menu items on mobile ****/
  
#main-header .et_mobile_menu li ul.hide {
display: none !important;
}
  
/**** This adjusts the positioning and the background transparency of the parent menu item on mobile ****/
  
#mobile_menu .menu-item-has-children {
position: relative;
}
#mobile_menu .menu-item-has-children > a {
background: transparent;
}
  
/**** This styles the icon and moves it to the right ****/
  
#mobile_menu .menu-item-has-children > a + span {
position: absolute;
right: 0;
top: 0;
padding: 10px 20px;
font-size: 20px;
font-weight: 700;
cursor: pointer;
z-index: 3;
}
  
/**** Here you can swap out the actual icons ****/
  
span.menu-closed:before {
content: "c";
display: block;
color: #fff;
font-size: 16px;
font-family: ETmodules;
}
  
span.menu-closed.menu-open:before {
content: "d";
}

.mobile_nav.opened .mobile_menu_bar::before {
	content: "d";
}

<script type="text/javascript">
(function($) { 
    function setup_collapsible_submenus() {
        // mobile menu
        $('#mobile_menu .menu-item-has-children > a').after('<span class="menu-closed"></span>');
        $('#mobile_menu .menu-item-has-children > a').each(function() {
            $(this).next().next('.sub-menu').toggleClass('hide',1000);
        });
        $('#mobile_menu .menu-item-has-children > a + span').on('click', function(event) {
            event.preventDefault();
            $(this).toggleClass('menu-open');
            $(this).next('.sub-menu').toggleClass('hide',1000);
        });
    }
        
    $(window).load(function() {
        setTimeout(function() {
            setup_collapsible_submenus();
        }, 700);
    });
   
})(jQuery);
</script>