Layout for Scroll View For the best viewing experience in scroll view, set the presentation’s slide aspect ratio to 16:9. Make sure to put consistent padding & leave some space above & below the contents of the slide. This will achieve the How to set up guides in PowerPoint: feel of a website rather than a zoomed in PowerPoint 1. Click on “View,” then select “Guides” because the ratio size will be balanced. 2. To add a guide, right-click on an existing guide, then add a vertical or horizontal guide 3. Align vertical lines to 9.00cm with the top ruler 4. Align horizontal lines to 5.50cm with the left ruler