.bx-core-waitwindow{background-image:url(/images/ajax-loader.gif)!important;font-size:0px!important;background-position:50% 50%!important;padding:0px!important;background-color:transparent!important;border:none!important;width:100px!important;height:100px!important;position:fixed!important;left:50%!important;top:50%!important;margin-left:-50px!important;margin-top:-50px!important;}