I am playing around with some CSS trying to make the “No results” banner on my experience “sticky” (stay at the top of the page when the user scrolls), but it doesn’t seem to be working.
I only changed the target div, updated the top property so the banner stays in the results section below the search bar, and z-index to bring it to the front. Also, this will work on standard vertical pages but verticals with map have an entirely different layout, so further testing and adjustments will be needed there (if you are using vertical with map) but this hopefully gets you in the right direction.