I have downloaded a simple bootstrap template with a fixed sidebar (http://startbootstrap.com/template-overviews/simple-sidebar/) and tried to integrate custom scroll bar in it (http://manos.malihu.gr/jquery-custom-content-scroller/) but once the plugin runs
$("#sidebar-wrapper").mCustomScrollbar()
or
$("#sidebar-wrapper").mCustomScrollbar({theme: "minimal-dark"})
the menu becomes a black screen. I created this fiddle to show this behaviour https://jsfiddle.net/9qawf6r3/. Here is another example working: http://jsfiddle.net/wuj2v604/
Any idea on this?