Thread:Project:Support desk/Responsive skins for mobiles, tablets and PCs

I've just upgraded to Mediawiki 1.23.5, and the have the new Vector theme as the default.

I'd like my site to work will with mobiles (Android etc) and tablets, is there a guidelines page? I couldn't find one.

Is there a specific responsive theme I need?

Are there extensions I need, or are recommend?