.arrow-down {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 20px 20px 0 20px;
  @include responsive-to('mobile') {
    border-width: 10px 10px 0 10px;
  }
  &--white {
    border-color: $white transparent transparent transparent;
  }
  &--light-grey {
    border-color: $light-grey transparent transparent transparent;
  }
  &--mid-grey {
    border-color: $mid-grey transparent transparent transparent;
  }
}