.Sentinel__top,.Sentinel__bottom{visibility:hidden;height:30px;position:absolute;left:0;right:0}.Sentinel__left,.Sentinel__right{visibility:hidden;width:30px;position:absolute;top:0;bottom:0}.Sentinel__debug{z-index:99999999;visibility:visible;background-color:#72c293}.IAIntersliceHook{position:relative}