repeating-radial-gradient

background-image: repeating-radial-gradient(#80ff91, #008b8b 5%);

repeating-radial-gradient(circle, #80ff91, #008b8b 20px);

repeating-radial-gradient(circle farthest-corner at 25% 25%, red, yellow 25%);

repeating-radial-gradient(circle closest-corner at 25% 25%, red, yellow 25%);

repeating-radial-gradient(circle at 50% 0%, red, yellow 5%);