.background {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  opacity: 0.4;

  animation: shimmer-background 6s ease-in-out infinite;
}

.background svg {
  transform: scale(1.1);
}