In a text box or shape, the space around text is called the “inset margin.” You can change the inset margin of a text box or shape in iWeb.
Select the text box or shape with the inset margin you want to change.
If the Text inspector isn’t open, click the Inspector button in the toolbar at the bottom of the iWeb window (or choose View > Show Inspector), and then click the Text button.
In the Text pane, drag the Inset Margin slider, or enter a new value (between 0 and 50) in the Inset Margin field. (The abbreviation “pt” stands for “points,” a unit of measure in font sizing.)
Dragging the slider to the right increases the space; dragging it to the left decreases the space.
The amount of space you specify is applied equally around the text on all four sides.