html,
body {
	height: 100%;
	margin: 0;
}

body {
	align-items: center;
	background: conic-gradient(from 90deg, red, yellow, lime, aqua, blue, magenta, red);
	background-repeat: no-repeat;
	background-size: cover;
	display: flex;
	font: 900 3em/1 "Roboto", "Arial";
	justify-content: center;
}

h1 {
	color: white;   
	background: conic-gradient(from -90deg, red, yellow, lime, aqua, blue, magenta, red);
	font-size: 2.5em;
	text-transform: uppercase;
   background-clip: text;
   -webkit-text-fill-color: transparent;
}