.mw-100 {
  max-width: 100%;
}
@media only screen and (min-width: 30em) {
  .mw-100-ns {
    max-width: 100%;
  }
}
@media only screen and (min-width: 30em) and (max-width: 60em) {
  .mw-100-m {
    max-width: 100%;
  }
}
@media only screen and (min-width: 60em) {
  .mw-100-l {
    max-width: 100%;
  }
}