col-sm-12 col-md-6 col-lg-2

col-sm-6 col-md-3 col-lg-2

col-sm-6 col-md-3 col-lg-2

col-sm-12 col-md-6 col-lg-2

col-sm-6 col-md-3 col-lg-2

col-sm-6 col-md-3 col-lg-2