I also wish to make a comment. The commentary in the Wix Help Centre says that you can add as many breakpoints as you wish. This is incorrect. You can only add 3 custom breakpoints to each page in addition to the 3 default breakpoints for desktop, tablet and mobiles.
This is very misleading, and a significant limitation on users’ ability to design a responsive website given the huge range of devices out there with different viewports, screen resolutions, etc. It should be made abundantly clear in your description of this product that you can ONLY add 3 additional custom breakpoints to the 3 default breakpoiints.
Obviously, I am aware of other responsive design features, such as layouters, units of measure, etc but this is not the point - and unfortunately not sufficient to dispense with the need for more breakpoints in certain circumstances.

