body {
  line-height:inherit;
  margin:0;
  background-color:#2d2d2d !important;
  background-size: cover;
  background-image: url('bg.jpg');

}
body:before {
  position: fixed;
  content: "";
  background-image: url('https://spruko.com/demo/scifi/dist/assets/css/p9-BCFTXLSJ.png');
  inset-inline-start: 0;
  inset-inline-end: 0;
  top: 0;
  bottom: 0;
  background-position: center;
  background-repeat: repeat;
  opacity: 0.4;
  z-index: -1;
}