html {
  --s: 76px; /* control the size*/
  --c1: #f6d86b;
  --c2: #f10c49;
  
  background:
    conic-gradient(
      var(--c2) atan(2), var(--c1) 0 calc(180deg - atan(2)),
      var(--c2) 0 180deg,var(--c1) 0 calc(180deg + atan(2)),
      var(--c2) 0 calc(360deg - atan(2)),var(--c1) 0);
  background-size: calc(2*var(--s)) var(--s);
}
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