/* Embed
   ========================================================================== */
.embed-responsive {
  @include embed-responsive;
  &--1x1 {
    @include embed-responsive--ratio(percentage(1/1));
  }
  &--4x3 {
    @include embed-responsive--ratio(percentage(3/4));
  }
  &--16x9 {
    @include embed-responsive--ratio(percentage(9/16));
  }
  &--21x9 {
    @include embed-responsive--ratio(percentage(9/21));
  }
  &__item {
    @include embed-responsive__item;
  }
}