body {
    font-family:'Courier New', Courier, monospace;
    text-align: center;
    background-image: linear-gradient(-45deg, #a7ecb6, #39f358, #22b1ca, #65ceee, rgb(158, 225, 241) );
	background-size: 400% 400%;
	animation: gradient 15s ease infinite;
}

@keyframes gradient {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}