How to stop Push/Pull moving everything down

I have created a search item that on click drops down moving the items below down. This is all working fine. However I have a bottom nav bar that I want to remain in place. This is not in a dynamic panel but it still being pushed down. How to I keep that in place?
Thanks

Place the bottom nav bar in a dynamic panel and pin that panel to the browser to the bottom of the window (using a margin if needed, so it doesn’t have to be exactly at the bottom of the browser’s viewport window.) Then it will “float” and not scroll or move with other content.

Thanks, I completed missed the Pin to browser option.