When in responsive mode elements are appearing to be slightly off the left hand side of the screen and its causing my page not to wrap and get smaller properly.
Try scrolling to the left with your mouse to view the whole screen.
If it is something else maybe share what your editor side looks like. Hope that helps.
BTW, welcome to Bubble!
Hopefully tomorrow I can post another video about responsiveness that may help with what you are doing as well.
Here is another video that may help you out. Let me know if this works for you.