body {
	background: black;
	animation: arcEnCiel 5s linear infinite;
	font-family: monospace;
	white-space: pre;
}

@keyframes arcEnCiel { 
	0% { color: #ff0000; }
	8% { color: #ff8000; }
	17% { color: #ffff00; }
	25% { color: #00ff00; }
	33% { color: #0000ff; }
	41% { color: #4b0082; }
	50% { color: #ff0000; }
	58% { color: #ff8000; }
	67% { color: #ffff00; }
	75% { color: #00ff00; }
	83% { color: #0000ff; }
	92% { color: #4b0082; }
	100% { color: #ff0000; }
}