body{
	background: url(background.jpg) no-repeat center center fixed; 
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
	margin: 10 50 50 50;
	font-family: Ariel;
	font-size: 20;
	text-align: justify;
}