Hey Tim, when you initialize the widget it should be with display: ‘block’. After you initialize it, you can hide it or do what you want. The widget has layouts and with display:none, jQuery’s width and height methods return 0. If you want it hidden, set the DIV’s visibility to hidden or create it and use the jQuery’s hide method after the initialization. I suppose that its also possible to call the jqxTab’s refresh method to update its layout.