body {  background-color: #00519B;  margin-left:0px;  margin-top:0px;  overflow:hidden;
}

#Centro {  width:780px;  height:450px;  position:absolute;  top:50%;  left:50%;  margin-top:-225px;  margin-left:-390px;
}
#Centro800 {  width:610px;  height:352px;  position:absolute;  top:50%;  left:50%;  margin-top:-176px;  margin-left:-305px;
}