.bg {
  position: fixed;
  top: -50%;
  left: -50%;
  right: -50%;
  bottom: -50%;
  width: 200%;
  height: 200vh;
  z-index: -1;
  background: transparent url('/assets/imgs/noise-transparent.png') repeat 0 0;
  background-repeat: repeat;
  animation: bg-animation .2s infinite;
  opacity: .9;
  visibility: visible;
}

@keyframes bg-animation {
  0% {
    transform: translate(0, 0)
  }

  10% {
    transform: translate(-5%, -5%)
  }

  20% {
    transform: translate(-10%, 5%)
  }

  30% {
    transform: translate(5%, -10%)
  }

  40% {
    transform: translate(-5%, 15%)
  }

  50% {
    transform: translate(-10%, 5%)
  }

  60% {
    transform: translate(15%, 0)
  }

  70% {
    transform: translate(0, 10%)
  }

  80% {
    transform: translate(-15%, 0)
  }

  90% {
    transform: translate(10%, 5%)
  }

  100% {
    transform: translate(5%, 0)
  }
}