Customizing Mobile Style for Phones on Divi
Everyone pretty well knows by now, I make a true mobile site, and when using Divi these setting on the phone styles seem to work best for me overall. Now when I make my mobile site, I still use some of the custom css setting in the rows of the actual mobile page, but these settings shown below are a great starting point.
Below these settings is a mobile site I created with divi for a customer. You will see the spacing and stuff is spot on. No child theme or anything. My mobile sites work on child themes, but also work on Divi out of the box.