.custom-tree /deep/ .ant-menu-item-group-title{position:relative}.custom-tree /deep/ .ant-menu-item-group-title:hover .btn,.custom-tree /deep/ .ant-menu-item:hover .btn{display:block}.custom-tree /deep/ .btn{display:none;position:absolute;top:0;right:.625rem;width:1.25rem;height:2.5rem;line-height:2.5rem;z-index:1050}.custom-tree /deep/ .btn:hover{transform:scale(1.2);transition:all .5s}