.row-xs-flex {
  display: flex;
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flex;
}

@media (min-width: 768px) {
  .row-sm-flex {
    display: flex;
  }
}

@media (min-width: 992px) {
  .row-md-flex {
    display: flex;
  }
}

@media (min-width: 1200px) {
  .row-lg-flex {
    display: flex;
  }
}