.virtual{position:fixed;display:block}.drag_active_left .virtual{cursor:move;border-left:1px dotted #666;z-index:99}.drag_active_right .virtual{cursor:move;border-right:1px dotted #666;z-index:99}.thead-cell{display:-ms-inline-flexbox;display:inline-flex;-ms-flex-direction:column;flex-direction:column}.thead-cell:before{content:"";position:absolute;top:0;left:0;bottom:0;right:0}.dragging_column{background-color:#f3f3f3!important}