/* AFFICHAGE DU FOND D ECRAN ======================= */
html {
	background: 	black;
	overflow-x: 	hidden; 
	overflow-y:		hidden;
}

/* CENTRAGE DU SITE ================================= */
.zone-de-travail{
	overflow-x: 	hidden; 
	overflow-y:		hidden;
	margin-left: 	auto;
	margin-right:	auto;
	margin-top: 	auto;
	margin-bottom:	auto;
	width: 			1630px;
	height: 		885px;
	background: 	linear-gradient(to bottom, #1E90FF, #7FFF00 60%, #F4A460);
	border:			10px green ridge;
	border-radius: 	30px;
}