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

:root {
  --flag-height: 2;
  --flag-width: 3;
  --niger-orange: #e05206;
  --niger-white: #ffffff;
  --niger-green: #0db02b;
  --niger-disc-size: 20%;
}

#niger {
  position: relative;
  height: 180px;
  aspect-ratio: var(--flag-width) / var(--flag-height);
  background: linear-gradient(
    180deg,
    var(--niger-orange) 0%,
    var(--niger-orange) 33.333%,
    var(--niger-white) 33.333%,
    var(--niger-white) 66.666%,
    var(--niger-green) 66.666%,
    var(--niger-green) 100%
  );
}

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