I don't know much about CSS. I just copy bits I found on this thread and made a mess of it:
I piled 5 tiles with different templates (2 attributes, 1 thermostat, 1 outlet and 1 switch) to acheive what I wanted. I'm sure someone with real knowlege about CSS could do it way more neatly then that. I also had to customize the driver for the thermostats. I can share the CSS but I doubt it would be of much help and it certainely won't acheive that result by itself.