Thank you Leo.
I’ll give the mobile code a try.
However, regarding the first question – I meant how can I have the main content box overlay the page hero/header.
If you look at https://airbridge.net.au/services/
Their content box overlays their page hero.
I’d love to be able to do the same thing. So, nothing to do with the header/logo but what I mean is the content box overlaying the page hero.
Sorry for the confusion on that and thanks for getting back so fast.