html {
  height: 100%;
}

body {
  width: 100%;
  height: auto;
  min-height:35rem;
  background: linear-gradient(to bottom, rgba(1,1,1,.25) 0%, rgba(1,1,1,.45) 90%, rgba(2, 11, 26, 0.65) 100%), url("/img/world-bg.jpg");
  background-color: rgba(2, 11, 26, 0.65);
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-size: cover;
}
.cover-container {
  color: white;
  max-width: 42em;
}
.cover {
  padding: 0 1.5rem;
}
.cover .btn-lg {
  padding: .75rem 1.25rem;
  font-weight: 700;
}