body {	background-color:black;	color:#b7c4c8;	font-family:arial;}h1 {	color:#b7c4c8;}h2 {	color:#ff7f2a;}.orange {	color:#ff7f2a;}.acier {	color:#b7c4c8;}#global {   position:absolute;  left: 50%;    top: 50%;   width: 900px;   height: 406px;   margin-top: -203px; /* moitié de la hauteur */   margin-left: -450px; /* moitié de la largeur */   border: 1px solid #000;  text-align:center;}