body{

	padding:0;
 	margin:0;
	background:#FFC700	;

}

#conteneur_shoot_the_dog{	

	position:absolute; 	
	width:500px;		
	height:400px;		
	left:50%;		
	top:50%;	
	margin-left:-250px;		
	margin-top:-200px;
	border:1px solid #333333;

}