A demo of the Jellyfish Backdrop plugin using the container element option.
Left is a div that was added to this page with some styling to give it a size. It’s then just a case of using the id of this div as the slideshow container option when adding images to Jellyfish Backdrop admin panel in the post editor.
Our background slideshow has now moved into the foreground.
You could use this to make a slide show header, or slider type effect.