* {
	background: #000; 
	margin:0px;
}
#main {text-align: center}
#assinaEM {margin-top: 20px; text-align: right;}

#centro {
position: absolute;
top: 50%;
left: 50%;
width: 1004px;
height: 608px;
margin: -304px 0 0 -502px;
}