Full width on mobile not working with containers

Hi Love Elementor – thanks. However I wanted to try a tab function so I activated flex boxes and made changes to a page but on mobile the page is now wobbly and looks like it’s too wide. None of the content is too wide – all containers look fine. If I change the page layout to default it doesn’t shift on mobile but I want it to be full width. Is there any solution to this please?

Many thanks in advance

The page I need help with: [log in to see the link]