foundation-float.css

@media screen and (min-width: 40em) {
  .medium-float-left { left; }
  .medium-float-right { right; }
  .medium-no-float { none; }
}

@media screen and (min-width: 75em) {
  .large-float-left { left; }
  .large-float-right { right; }
  .large-no-float { none; }
}

@media screen and (min-width: 90em) {
  .xlarge-float-left { left; }
  .xlarge-float-right { right; }
  .xlarge-no-float { none; }
}