body {
	color: rgb(0, 0, 0);
	background-color: rgb(192, 192, 192);

}
.conteneur {
  	margin: auto;
  	margin-top: 150px;
	border: 3px solid #1A10E9; 
	width: 800px; 
	height: 532px;

}
.retour {
	text-align: center;
	margin-top: 25px;
	color: #FF0000;
	font-family: "Bookman Old Style";
	font-size: 18px;
	font-weight: bold;
	font-style: italic;
}