body {
  background:
     url("background.jpg")
     top center
     no-repeat
     fixed
     white;
  color: white;
}

h1 {
  text-align: center;
}

@media (min-width: 768px) {
  .container {
    max-width: 730px;
  }
}

.jumbotron {
  background-color: transparent;
}

.foreground {
  background-color: #333;
  background-color:rgba(51, 51, 51, 0.6);
}