row
col-lg-6
col-lg-6
col-lg-5 col-lg-offset-2
col-lg-3
col-lg-2
col-sm-2 col-md-3 col-lg-4
col-sm-2 col-md-3 col-lg-4
col-sm-2 col-md-3 col-lg-4
col-sm-2 col-md-3 col-lg-4
screen-sm-up
screen-md-up
screen-lg-up
screen-xs
screen-sm
screen-md
screen-lg
screen-xl