html, body {
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
}
#full-screen-background-image {
  z-index: -999;
  min-height: 100%;
  min-width: 1024px;
  width: 100%;
  height: auto;
  position: fixed;
  top: 0;
  left: 0;
}
#wrapper {
  position: relative;
  width: 760px;
  min-height:200px;
  margin: 100px auto 0;
  color: #f5f5f5;
  background: rgba(0, 0, 0, 0.50);
  padding:20px 30px;
}