When uploading a background image, the minimum width should be 1366 pixels wide and at least 660 pixels high. Please note when pages become longer than this default size, the background image will automatically zoom in to fill the empty space.
Follow the below steps to ensure this doesn't happen:
1. PHOTOS: To accommodate a longer page length, upload a background image that has a longer height.
As the length of the page increases, this long background will no longer "need to zoom".
For this specific example, the height of this background image went from 600px long to 1600 pixels long.
Tip: This may take a few trial-and-error attempts as you play around with the layout and length of content.
2. GRAPHICS: To accommodate a longer page length, extend the graphics further and then upload a background image version with a longer height.
Tip: This may take a few trial-and-error attempts as you play around with the layout and length of content.