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

:root {
  --flag-height: 3;
  --flag-width: 5;
  --england-red: #ce1126;
  --england-white: #ffffff;
}

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

#england::before,
#england::after {
  content: "";
  position: absolute;
  background: var(--england-red);
}

#england::before {
  left: 40%;
  top: 0;
  width: 20%;
  height: 100%;
}

#england::after {
  top: 40%;
  left: 0;
  width: 100%;
  height: 20%;
}