html { 
   text-align:center; 
   background:#666666 url(/imagens/fundo_sombra.png) repeat-Y center;
} 

body {
	margin:0 auto; 
	padding:0px,0px,0px,0px; 
	text-align:center;
	}

#tudo {
	width: 750px;
	height:420px;
	margin:0 auto;			
	padding:0px,0px,0px,0px; 
	text-align:center;
	}
#conteudo {
	position:absolute;
	left:50%;
	top:50%;
	margin-left:-374px;
	margin-top:-210px;
	padding: 0px;
	background-color: #666666;
	}