body {
	background-color: navy;
	color: white;
	font-size: 20px;
	font-family: sans-serif;
}
h1 {
	text-align: center;
	background-color: black;
	color: black;
	padding: 20px;
	background-image: url("images/drapeau_londres.png");
	background-size: 150px;
} 
h {
	
}
.style1 {
	box-sizing: border-box;
}	
.style2 {
	background-color: white;
	padding: 10px;
	margin: 50px;
	color: black;
}