.particle-network-animation {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: 100vh;
  
  &::before {
    z-index: -2;
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    // background-image: url(http://web.frfr.me/dev/world-map-optimized.jpg);
    background-image: url(https://images.unsplash.com/photo-1450849608880-6f787542c88a?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&s=786a67dca1d8791d181bfd90b16240d9);
    background-position: center center;
  background-size: cover;
    opacity: 0.2;
  }
}
.glow {
  z-index: -1;
  position: fixed;
  top: 50%;
  left: 50%;
  background-image: radial-gradient(circle closest-side, rgba(255, 255, 255, 0.025), transparent);
}
$duration: 25s;
.glow-1 {
  width: 150vw;
  height: 150vh;
  margin-top: -75vh;
  margin-left: -75vw;
  animation: glow-1-move $duration linear infinite both;
}
@keyframes glow-1-move {
  from {
    transform: translate(-100%, 100%);
  }
  to {
    transform: translate(100%, -100%);
  }
}
.glow-2 {
  width: 100vw;
  height: 100vh;
  margin-top: -50vh;
  margin-left: -50vw;
  animation: glow-2-move $duration linear $duration / 3 infinite both;
}
@keyframes glow-2-move {
  from {
    transform: translate(-100%, 0%);
  }
  to {
    transform: translate(100%, 100%);
  }
}
.glow-3 {
  width: 120vw;
  height: 120vh;
  margin-top: -60vh;
  margin-left: -60vw;
  animation: glow-3-move $duration linear $duration / 3 * 2 infinite both;
}
@keyframes glow-3-move {
  from {
    transform: translate(100%, 100%);
  }
  to {
    transform: translate(0%, -100%);
  }
}