With recent changes to bootstrap, the OPAC now throws the ulactioncontainer (which is in div.col-lg-3) all the way to the bottom of the screen. This is annoying if you are on a small device and your library has lots of details and add-ons (like Novelist Select). Users on small devices have to do a lot of scrolling to do anything. The ulactioncontainer would be better placed either under #catalogue_detail_biblio, or as popup menu under a 3 bar menu icon when viewed on a small device.