body {
  margin: 0;
  padding: 0;
  background: #001c2d url('background.jpg') center center no-repeat;
  background-attachment: fixed;
  font-family: Arial;
  font-size: 0.6em;
}
#content {
  margin-left: -271px;
  margin-top: -102px;
  padding: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 543px;
  height: 204px;
  z-index: 100;
  text-align: center;
  overflow: hidden;
}
#shadow {
  margin-left: -266px;
  margin-top: -100px;
  padding: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 543px;
  height: 204px;
  z-index: 50;
  text-align: center;
  overflow: hidden;
}