.tree-column{position:relative;padding:12px 12px;min-width:60px;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;box-sizing:border-box}.tree-column.border{border-right:1px solid #eee}.resize-line{position:absolute;top:0;right:-3px;width:6px;height:100%;cursor:col-resize}