body {
  background: url('/luc_dark-compressor.jpg') no-repeat center center fixed;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  background-size: cover;
  -o-background-size: cover;
}
html, body, #fullheight {
    min-height: 100% !important;
    height: 100%;
}