html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.bg-image {
  width: 100%;
  height: 30%;
  position: fixed;
  bottom: 0;
  left: 0;
  opacity: 0.1;
  object-fit: cover;
  user-select: none;
}