code: function drawCols(cellPositions, tableHeight, tablePosition) {
          Tools.each(cellPositions, function (cellPosition) {
            var left = cellPosition.x - RESIZE_BAR_THICKNESS / 2,
              top = tablePosition.y,
              height = tableHeight,
              width = RESIZE_BAR_THICKNESS;
  
            editor.dom.add(getBody(), 'div',
              generateBar(RESIZE_BAR_COL_CLASS, RESIZE_BAR_COL_CURSOR_STYLE,
                left, top, height, width, RESIZE_BAR_COL_DATA_ATTRIBUTE, cellPosition.index));
          });
        }
docs: Draw the column bars over the column borders.