Hope the family is well and that there is not too much rain on the island.
I am developing locally so I can’t provide you with a link. 😉
I set up a two column grid as follows:
My text for column one
My text for column two
I have not added any css.
the columns display as they should in fullscreen and tablet, however when I view the mobile version in the GP customizer, the columns fall into a single row as expected, BUT when I scroll down to view the text (from the second column) the text area is thinner. That is, the text area from the second column appears to have more padding on both the left and the right, than the text from column one.
I have triple checked my html and there is no error there.