The container is transparent and scrolls over eclectic images on the background in a parallax-type manner.
Is there a key word I could use looking for a template with this functionality.
I've looked at about a million parallax sites but nothing
Most parallax sites are pretty much the same. If you're not finding what you want, you'll likely have to create it yourself.
I built this some time ago in Dreamweaver with Bootstrap and jQuery. Use it as a starter for your own custom project