As attaching you will find an example mainly inspired from Foodora.
The tricky part will be to create the header editable with a transparent box behind and a button that will be editable and could be smaller in some situation : [url removed, login to view]
There is 2 differents blocks :
Make sure to align center everything into the second block because some design part was not made properly from me : [url removed, login to view]
The real email could be forwarded in case you need an example !