To determine the size, scale, and position of a design grid, use the controls in the Text Settings tab. The Text Settings tab displays in the Master Guides & Grid, Edit Grid Style, and the Grid Settings dialog boxes.

Text Settings tab of Master Guides & Grid

• Font Size: Enter a size to determine the height of each line in a design grid.
• Vertical Scaling: Enter a percentage value to adjust the height of each line in a design grid, based on the font size.
• Line Spacing and Leading: The Line Spacing and Leading values determine grid spacing. Line spacing is based on the following formula: Font Size multiplied by Vertical Scaling plus Line Spacing equals Leading. For example, if Font Size is 12 pt, Vertical Scaling is 100%, and Line Spacing is 2 pt, then Leading is 14 pt.
• When a design grid is based on a paragraph style sheet, the Leading value is defined in the style sheet. The Leading value can be a specific number or, if the value is auto, it is derived from the Auto Leading value in the Paragraph tab of the Preferences dialog box (QuarkXPress/Edit > Preferences). See “Loading grid settings” for information about linking style sheets to grid styles.
• Baseline Position: Choose an option in this area to specify positioning for the baseline in the design grid.

To specify the offset origin, click Place at, choose Topline, Center (Up), Center (Down), or Bottomline in the from the drop-down menu, and then enter a percentage value in the field to specify the baseline position relative to the topline, centerline, or bottomline.

To read the offset origin from a font, click Read From Font and then select a font from the drop-down menu. The baseline defined for the selected font determines the baseline position for each line in the grid. The percentage value displayed below the font list indicates the relationship between the baseline and the bottomline in the font’s design.

• Offset: To control where the first line of the design grid is placed on the page or in the box, choose Topline, Centerline, Baseline, or Bottomline and enter a measurement value in the field.
• Adjust: Click to display the Adjust Lines Within Margins dialog box for master page grids. For more information, see “Adjust Lines Within Margins dialog box.”
• Lines within margin or Lines within box: This field displays the number of lines that can fit on a page or in a box, based on the settings above.