style formatting friendly to cellphone display & scrolling
 

Apologies if this is redundant of something already on this forum. The new search is not giving good results* I am probably not using it correctly. Please feel free to just reply with a link if this has already been addressed.

I understand it is possible to offer a style selection that is friendly to cellphone display* re screensize* scrolling and no visual clutter. Is there advice on setting this up* or is this something people usually purchase?