body {
  width: 100vw;
  height: 100vh;
  background: #141414;
}

a-hole {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
a-hole:before {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: block;
  width: 150%;
  height: 140%;
  background: radial-gradient(ellipse at 50% 55%, transparent 10%, black 50%);
  transform: translate3d(-50%, -50%, 0);
  content: "";
}
a-hole:after {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  display: block;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 75%, #a900ff 20%, transparent 75%);
  mix-blend-mode: overlay;
  transform: translate3d(-50%, -50%, 0);
  content: "";
}
@-webkit-keyframes aura-glow {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 300%;
  }
}
@keyframes aura-glow {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 300%;
  }
}
a-hole .aura {
  position: absolute;
  top: -71.5%;
  left: 50%;
  z-index: 3;
  width: 30%;
  height: 140%;
  background: linear-gradient(20deg, #00f8f1, #ffbd1e20 16.5%, #fe848f 33%, #fe848f20 49.5%, #00f8f1 66%, #00f8f160 85.5%, #ffbd1e 100%) 0 100%/100% 200%;
  border-radius: 0 0 100% 100%;
  filter: blur(50px);
  mix-blend-mode: plus-lighter;
  opacity: 0.75;
  transform: translate3d(-50%, 0, 0);
  -webkit-animation: aura-glow 5s infinite linear;
          animation: aura-glow 5s infinite linear;
}
a-hole .overlay {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(transparent, transparent 1px, white 1px, white 2px);
  mix-blend-mode: overlay;
  opacity: 0.5;
}
a-hole canvas {
  display: block;
  width: 100%;
  height: 100%;
}