body {
  margin:0 0 0 0;
  text-align:center;
  background-color:#8D8D8D;
}

#container_logo {
  margin:0 0 0 0;
  position:relative;
  top:25%;
}

#center{
  width:850px;
  height:550px;
  position:absolute;
  margin-left:-410px;
  left:50%;
  margin-top:-260px;
  top:50%;
}

.imp_data {
  text-align:center;
  font-family:tahoma;
  font-size:10px;
  color:white;
}