update static_pages controller to assign each word overlay word to one of 6 different 'speed' classes, to variagate styles on home
update static_pages controller to assign each word overlay word to one of 6 different 'speed' classes, to variagate styles on home

YaleDHLab/voices,YaleDHLab/voices,YaleDHLab/voices,YaleDHLab/voices