Hi everyone,
I was thinking to well understand the responsive settings…unfortunately, I’m stuck since yesterday on an issue.
Here what I got in preview :
As explained, basially I got three floating groups : left menu + 2 headers. I want the group discover to cover all the page as it is in the editor view :
Note that in reponsive, everyting is left aligned…
If anyone have any ideas/advices, please ! It will help me avoid another cigarette/aspirin pack! 
Why not make the page bg blue? 
Thanks @vincent56. I already tried that. However, it produces some weird design as I want the text and image present in the group to center vertically in on the page…
Not sure if I’m totally understanding you but I’ll give it a go.
Page = blue background
Put transparent Discover group and image group in one parent group.
Center parent group and either make it 100% or slightly bigger for wider screens 130%
In Responsive mode make Discover group and image group both center aligned so that they wrap to centre on mobile, one on each line.
There is a public Bubble test app here, you can create a page and copy your page to it (removing any confidential data) if you would like help.
J.
Yes, way easier to troubleshoot if we can access the issue in an editor.
