Hello! I am still pretty confused because you haven’t mentioned anything specific about what elements you are trying to make responsive and where the problem is starting for you. So we can better help you, try and mention any specifics regarding elements and what you expect them to do and at what breakpoints.
Also, Webflow’s styles cascade down from the desktop breakpoint. Meaning any style changes you make to a class on the mobile screen will not be that way on any breakpoints (screen sizes) that are larger. Meaning styles don’t cascade upwards, only downwards. It is not a mobile first approach.
Thanks for sharing the read-only link. I took a look at it and it looks like everything is resizing ok. I just don’t know what exactly you’d like to be different. Happy to help though. Let me know. Thanks!