.selectTreeClass{background:#ebf7ff}.core2{width:100%;height:100%;border-radius:5px;padding:10px 0 0 0;overflow:hidden;position:relative}.core2 .helloDropdowna .ivu-dropdown-item{padding:5px 5px}.core2 .helloDropdowna a{padding:10px 25px}.core2 .demo-tree-render.ivu-tree{width:100%;height:100%;overflow:auto}.core2 .demo-tree-render.ivu-tree .ivu-tree-title-selected,.core2 .demo-tree-render.ivu-tree .ivu-tree-title-selected:hover{background:#f1dcdc}.core2 span.class-titles:hover{background-color:#eaf2ff;color:#2877ff}.core2 span.ivu-tree-arrow.ivu-tree-arrow-open{width:3%}.core2 span.ivu-tree-title{width:96%}.core2 .abs-zone{position:absolute;width:100%;height:100%;top:0;left:0;background:hsla(0,0%,100%,.8);z-index:1}.core2 .abs-zone .box{position:absolute;width:100%;top:50%;left:0;margin-top:-32px;text-align:center}