html {
  --un: 1vmax;
  --c1: #008eff;
  --c2: #007ce0;
  --c3: #28a0ff;
  --c4: #0071ca;
  --gp: 50%/calc(var(--un) * 10) calc(var(--un) * 10);
  height: 100vh;
  background-color: var(--c1);
  background:           
    repeating-conic-gradient(from 90deg at 75% 75% , var(--c4) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 180deg at 50% 75% , var(--c1) 0% 12.5%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 135deg at 62.5% 62.5% , var(--c4) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 134.5deg at 25% 75% , var(--c1) 0% 12.65%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 135deg at 12.5% 62.5% , var(--c4) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 225deg at 12.5% 62.5% , var(--c3) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 225deg at 25% 50% , var(--c2) 0% 12.5%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 90deg at 75% 75% , var(--c1) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 135deg at 50% 50% , var(--c1) 0% 37.5%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 225deg at 75% 50% , var(--c2) 0% 12.5%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 45deg at 62.5% 62.5% , var(--c3) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 90deg at 75% 25% , var(--c3) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 45deg at 62.5% 12.5%, var(--c3) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from -45deg at 62.5% 12.5%, var(--c4) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 45deg at 50% 25%, var(--c2) 0% 12.5%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from -45deg at 12.5% 12.5%, var(--c4) 0% 25%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from 0deg at 0% 25%, var(--c3) 0% 12.50%, #fff0 0% 100%) var(--gp),
    repeating-conic-gradient(from -90deg at 25% 25%, var(--c2) 0% 12.50%, #fff0 0% 100%) var(--gp),
    repeating-linear-gradient(180deg, var(--c1) 0 25%, var(--c2) 0 50%, var(--c1) 0 100% ) var(--gp);
}