body {
	width:100%;
	margin:0;
	padding:0;
}
#conteneur {
	width:100%;
	padding:0;
	margin:0;
}
#lecteur {
	width:100%;
	margin:auto;
	padding:0;
	position:relative;
	overflow:hidden;
}
#ecran_photo {
	width:100%;
	margin:auto;
	overflow:hidden;	
}
#fond_ecran {
	display:block;
	width:100%;
	position:relative;
}
#img1, #img2, #img3 {
	width:100%;
	position:absolute;
	top:0;
	left:0;
	overflow:hidden;
	z-index:2;
}
#commandes {
	width:500px;
	height:50px;
	position:absolute;
	bottom:25px;
	left:50%;
	margin-left:-250px;
}
#avance, #recule {
	cursor:pointer
}
#recule {
	width:120px;
	height:30px;
	position:absolute;
	left:50px;
	top:10px;
	z-index:10;
}
#retour {
	width:120px;
	height:30px;
	position:absolute;
	left:50px;
	top:10px;	
	z-index:2;
}
#retourOK {
	width:120px;
	height:30px;
	position:absolute;
	left:50px;
	top:10px;	
	z-index:1;
}
#avance {
	width:112px;
	height:30px;
	position:absolute;
	top:10px;
	right:50px;
	z-index:10;
}
#avant {
	width:112px;
	height:30px;
	position:absolute;
	top:10px;
	right:50px;
	z-index:2;	
}
#avantOK {
	width:112px;
	height:30px;
	position:absolute;
	top:10px;
	right:50px;
	z-index:1;	
}
@media screen and (max-width: 450px){
	#recule {
		width:80px;
		height:20px;
	}
	#retour {
		width:80px;
		height:20px;
	}
	#retourOK {
		width:80px;
		height:20px;
	}
	#avance {
		width:75px;
		height:20px;
	}
	#avant {
		width:75px;
		height:20px;
	}
	#avantOK {
		width:75px;
		height:20px;
	}
}