There are two sizes that are relevant to the layout of pages. 

  • Page size (1 in the image below) 
    The page size refers to the visible area of the content, which is also used for the content fit strategies Think of a mobile device's display as a reference. 
    Whenever you create device-optimized layouts for tablets and smartphones, we recommend the following settings:
    • Tablet layouts should be designed for a 4: 3 aspect ratio.
    • Phone layouts should be designed for a 16: 9 aspect ratio.


  • Content size (2 in the image below) 
    The content size refers to the total size of the content. To see the content that is outside of the visible area, scrolling must be activated