/* reference: https://en.wikipedia.org/wiki/Flag_of_Bangladesh */

:root {
  --flag-height: 3;
  --flag-width: 5;
  --bangladesh-green: #006a4e;
  --bangladesh-red: #f42a41;
  --bangladesh-disc-size: 40%;
}

#bangladesh {
  position: relative;
  height: 180px;
  aspect-ratio: var(--flag-width) / var(--flag-height);
  background: var(--bangladesh-green);
}

#bangladesh::before {
  content: "";
  position: absolute;
  width: calc(var(--bangladesh-disc-size) * var(--flag-height) / var(--flag-width));
  height: var(--bangladesh-disc-size);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bangladesh-red);
  border-radius: 50%;
}