Usually your app doesn’t need to be scrollable if you built it the right way. It only becomes scrollable when the elements don’t fit on the page. How have you designed it? Can you show some screenshots? Hope to help out.
It’s like the height of index is too big? I’m not sure what causes this, but I don’t find a dynamic setting for height as there is for width in the responsive layout design
I see. The picture is helpful. Check the minimum page height. Put it to 0. If there are other elements, make sure they collapse when hidden and remove the minimum height as well. Let me know if that helps