[Solved] Changing Background-image for a single Volto page

How do you change the background image for a single page in Volto frontend? I've tried adding a custom block and trying to do it from the code for the block, however it can't access the .ui.basic.segment.content-area that the blocks are placed in...

Thank you for time on this...
Andrew

Nevermind.
I just learned to use ":has()" with the div id.
For example the css would be:

.ui.basic.segment.content-area:has(#manage-portal) {
    background-image: url(../../Views/background-min.png);
}

where the div id="manage-portal" is specific to only the page you want that background image to apply to.
Sorry for the stupid question.