Added mid-range responsive classes for slingshot
Added mid-range responsive classes for slingshot

Dazag/mvp,hyptos/mvp,shockry/mvp,elementary/website,elementary/website,hyptos/mvp,aleksandar-todorovic/mvp,jgabriellima/mvp,isdampe/mvp,elementary/mvp,Sesshoumaru404/mvp,shockry/mvp,sineld/mvp,ericramirez/mvp,isdampe/mvp,wakermahmud/mvp,Dazag/mvp,arunlodhi/mvp,LinkBR/mvp,luiscauro/mvp,btkostner/mvp,aleksandar-todorovic/mvp,Dazag/mvp,learnercys/mvp,jpcarvalho1992/mvp,jpcarvalho1992/mvp,arunlodhi/mvp,elementary/website,learnercys/mvp,wakermahmud/mvp,luiscauro/mvp,Sesshoumaru404/mvp,sineld/mvp,btkostner/mvp,ericramirez/mvp,jgabriellima/mvp,sineld/mvp,Sesshoumaru404/mvp,isdampe/mvp,ethan42411/mvp,hyptos/mvp,wakermahmud/mvp,aleksandar-todorovic/mvp,ethan42411/mvp,charanrajtc/mvp,luiscauro/mvp,elementary/mvp,jgabriellima/mvp,ethan42411/mvp,LinkBR/mvp,jpcarvalho1992/mvp,btkostner/mvp,charanrajtc/mvp,shockry/mvp,elementary/mvp,charanrajtc/mvp,ericramirez/mvp,arunlodhi/mvp,learnercys/mvp,LinkBR/mvp