albertodelax/index.html

## index.html
<!DOCTYPE HTML>
<html>
<head>
	<style type="text/css">
		body {
			background-color: red;
			transition: background-color 7s;
		}
	</style>
</head>
<body>
	<script type="text/javascript">
		var colors = ["red", "orange", "yellow", "green", "blue", "indigo", "violet"];

		var i = 1;

		window.setInterval(function(){
			document.body.style.backgroundColor = colors[i];
			i++;
			if (i === colors.length){
				i=0;
			}
		}, 5000);
	</script>
</body>
</html>
	<!DOCTYPE HTML>
	<html>
	<head>
	<style type="text/css">
	body {
	background-color: red;
	transition: background-color 7s;
	}
	</style>
	</head>
	<body>
	<script type="text/javascript">
	var colors = ["red", "orange", "yellow", "green", "blue", "indigo", "violet"];

	var i = 1;

	window.setInterval(function(){
	document.body.style.backgroundColor = colors[i];
	i++;
	if (i === colors.length){
	i=0;
	}
	}, 5000);
	</script>
	</body>
	</html>