.heightByImageRatio::before {
  display: block;

  content: "";
}

.heightByImageRatio0::before {
  padding-top: calc(100% / (3 / 2));
}

.heightByImageRatio1::before {
  padding-top: calc(100% / (4 / 3));
}

.heightByImageRatio2::before {
  padding-top: calc(100%);
}

.heightByImageRatio3::before {
  padding-top: calc(100% / (3 / 4));
}

.heightByImageRatio4::before {
  padding-top: calc(100% / (2 / 3));
}

.heightByImageRatio5::before {
  padding-top: calc(100% / (16 / 9));
}

.heightByImageRatio6::before {
  padding-top: calc(100% / (9 / 16));
}