I have a div set to flex, with two divs in there of 50% width. In the live site these display horizontally, in the customiser they display vertically, is flex not ok to use?
Hey, we noticed that the Shopify customizer caches styles, which sometimes leads to weird layouts. But as long as the design on the live seite is correct, you don't need to worry about it :)
Yes, your client would also see it because it's not done by the browser, but rather by Shopify. But it should resolve after some time or if you update the theme a few times. Unfortunately we haven't found a way around it