.vc_ui-panel.vc_active, .vc_ui-panel.vc_ui-panel-window {
    z-index: 1000000 !important;
}
.mce-panel{z-index:100000 !important;}
.mce-panel.mce-menu{z-index:100000 !important;}
.vc_ui-panel.vc_ui-panel-window{z-index:6000 !important;}