.tree-bar::-webkit-scrollbar{width:6px;height:6px;display:none}.tree-bar::-webkit-scrollbar-thumb{border-radius:4px;-webkit-box-shadow:inset 0 0 2px #d1d1d1;background:#e4e4e4}.ivu-shrink-menu-item{background:#176ba5;margin-bottom:1px}.ivu-shrink-menu-item:hover{background:#29d}