html {
  display: flex;
  flex-direction: row;
  inset: 0 0 0 0;
  position: absolute;
  margin: 0;
  background: linear-gradient(180deg,
    black 0%, black 16.7%,
    white 16.7%, white 33.3%,
    black 33.3%, black 50%,
    white 50%, white 66.7%,
    black 66.7%, black 83.3%,
    white 83.3%, white 100%);
}

body {
  clip-path: polygon(0% 100%, 50% 0%, 100% 100%, 66.7% 100%, 50% 66.7%, 33.3% 100%);
  background: linear-gradient(180deg,
    red 0%, red 16.7%,
    orange 16.7%, orange 33.3%,
    yellow 33.3%, yellow 50%,
    green 50%, green 66.7%,
    blue 66.7%, blue 83.3%,
    purple 83.3%, purple 100%);
  aspect-ratio: 7/4;
  margin: 0 auto;
}