I just noticed that when viewing a number of pages on a android phone, when sections next to each other have the same back ground color, there seems to be this thin horizontal line showing where the sections meet. This thin line does not show up on a PC, laptop or tablet display.
I do have a page where this does not happen on the phone, so I know it is possible to have a clean join between sections with the same background color but can’t understand why so many other pages are having this line appear.
Any ideas why this could be happening?