You can set background options for a chart, such as a border, gridlines, gridline color, gridline style, and grid background. You can also set the grid depth.
To set background options for a chart:
From the Chart Properties property sheet, click the Format Chart button.
Click the Borders and Background icon to format the border and background of the chart.
To modify the gridlines, gridline color, style, or background, select an option from the drop-down list boxes:
To specify which gridlines to consider for the current format (both, vertical, horizontal or none), select an option from the Gridlines drop-down list.
To define a style (solid, dotted, dashed, dotdash, or bar) for the gridlines, select an option from the Gridline Style drop-down list.
To define a color for the gridlines, select an option from the Gridline Color drop-down color palette.
To define a background color to display behind the gridlines, select an option from the Grid Background drop-down color palette.