html {
height: 100%;
background:
	repeating-linear-gradient(
		50deg,
		#F7A37B,
		#F7A37B 1em,
		#FFDEA8 1em,
		#FFDEA8 2em,
		#D0E4B0 2em,
		#D0E4B0 3em,
		#7CC5D0 3em,
		#7CC5D0 4em,
		#00A2E1 4em,
		#00A2E1 5em,
		#0085C8 5em,
		#0085C8 6em
	),
	repeating-linear-gradient(
		-50deg,
		#F7A37B,
		#F7A37B 1em,
		#FFDEA8 1em,
		#FFDEA8 2em,
		#D0E4B0 2em,
		#D0E4B0 3em,
		#7CC5D0 3em,
		#7CC5D0 4em,
		#00A2E1 4em,
		#00A2E1 5em,
		#0085C8 5em,
		#0085C8 6em
	);
	
background-blend-mode: multiply;
}

External CSS

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External JavaScript

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