custom scrollbar

Hello everyboby,

I am trying to customize the stage scrollbar, but it doesn't work.

For that, I try to implement that methode :

jQuery custom content scroller – malihu | web design

in the Header of my .html I added this

<!--Custome scrollbar-->

    <link rel="stylesheet" href="css/jquery.mCustomScrollbar.min.css" /> // Malihu code

    <script src="css/jquery.mCustomScrollbar.concat.min.js"></script> // Malihu code

    <script>

    (function($){

        $(document).ready(function(){

            $(".content").mCustomScrollbar({theme:"dark-2"});

        });

    })(jQuery);

    </script>   

    <!--Custome scrollbar-->

I tryed also with :

  $(".Stage").mCustomScrollbar({theme:"dark-2"});

but without any result

If you know a solution or have any idea I would take it !

thanks