html, body {
	width: 100%;
	height:100%;
}

body {
    background: linear-gradient(-45deg, #000000, #000036, #161664, #160016);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
	background-attachment: fixed;
}

@keyframes gradient {
    0% {
        background-position: 0% 0%;
    }
    25% {
        background-position: 100% 100%;
    }
	50% {
        background-position: 0% 100%;
    }
	75% {
        background-position: 100% 0%;
    }
    100% {
        background-position: 0% 0%;
    }
}