Review the Slide Size All of the slides in a presentation have the same size and orientation. Like Themes, Slide Designs are applied to the whole show. Slide Size can be found on the Design Ribbon, next to the Themes.   2. Try it: Review the Slide Size Go to Design ->Customize->Slide Size. Select: Widescreen (16:9). What Do You See? There are two options: Standard (4:3 screen ratio) Widescreen (16:9 ratio) The Widescreen format fits movies and laptops. The Standard format is the default for Windows XP, which at the time of this writing represents about half of all computers.   Keep going, please... Design ->Customize->Slide Size Exam 77-422: Microsoft PowerPoint 2013 1.0 Create and Manage Presentations 1.3 Customize Presentation Options and Views: Change Slide Size (Custom Size)