body {
  background: url(roblaserpic2.jpg) no-repeat center left;
  background-position: 70% 0;
    -ms-background-size: cover;
    -o-background-size: cover;
    -moz-background-size: cover;
    -webkit-background-size: cover;
  background-size: cover;
  content: "";
  opacity: 0.90;
}