no margin on mobile

Hey Uroš,
This should not effect the padding or margin, I assume you have tried clearing your browser cache and any caching plugin.
If this doesn’t help, Can you please include a admin login in the private content area so we can take a closer look.
Also include a screenshot of what you see so we can be sure to examine the same.

Best regards,
Mike

Hi,
Thanks for the login, after checking, and clearing my cache, I didn’t find a difference between having the merging on or off for mobile.
I do see that your footer has no margin either way. So to fix that please try this code in the General Styling > Quick CSS field:

@media only screen and (max-width: 767px) { 
.responsive #top #wrap_all #footer .container {
    max-width: 85%!important;
    width: 85%!important;
}
}

Best regards,
Mike