Background image per page + 2017 Theme

Greetings –
The default 2017 Theme seems to have something more complex about the way pages are made.

I would like to have a different Background Image per page.

I managed to get one throughout the site using:

.site-content {
	background-image: url('IMG URL');
	background-position: center;
	background-repeat: no-repeat;
	background-size: cover;
}

But
body.page-id-# {}
is doing nothing for me in this case.
Thanks.

• This topic was modified 6 years, 8 months ago by ThrowStones.