This compute block specifies a background color and a bold font for all cells in the Sales column that contain values of 100 or greater and that are not summary lines. 
   compute sales;
      if sales.sum>100 and _break_=' ' then
      call define(_col_, "style", 
                  "style=[background=yellow 
                          font_face=helvetica 
                          font_weight=bold]");
   endcomp;