body {
background-color: white;
text-align: center;
 }
h1 { 
font-family:arial;
font-size: 250%;
color: black;
background-color: white;
 }
h2 { 
font-family:Comic Sans MS;
font-size: 200%;
color: white;
background-color: BLUE;
 }
 
 #sommario {
 text-align: left;
font-size: 150%;
 
 width: 85%;
 }
 #autore { 
	text-align: center;
	font-size: 100%;
	font-family:arial;
	font-weight: 700;
	width: 100%;
	 }
	 #vuoto{
	 display: none;
	 }