Text Properties Dialog Box, Alignment (Report Builder 3.0)
Select Alignment on the Text Properties dialog box to position the values within a selected cell or data region. You can only format the horizontal alignment of individual text within a text box. If you would like to set padding values on the text box or how text is aligned vertically, use the corresponding text box properties. For more information, see Text Box Properties Dialog Box, Alignment (Report Builder 3.0).