Go to Dashboard -> Divi -> Theme options -> and scroll down to the Custom CSS area. Paste the following code at the end of any existing code you have there. Change the font size and family to what you need for the header area and for the text area. ...
This tutorial will show you how to restore your shop page if it suddenly disappears but you should ONLY follow this tutorial if you did not add or edit anything to the original shop page, other than the products that automatically were added on the ...