This is a simple add-on which does exactly what I need! I'm working on a web site for a large sports team. I want my web site fully functional via cell phone with screen size responsiveness, and other Joomla extension tools don't seem to do that as well. Sizing set via bootstrap grid elements. Component easily attached to menu selection in the backend. Photos shrink as expected to work well on cell phone browser. Many thanks to the Schuweb folks.