.stuff {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  -webkit-animation: ouch 7s infinite alternate;
          animation: ouch 7s infinite alternate;
  background: radial-gradient(83vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 24vw 32vh, radial-gradient(65vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 4vw 96vh, radial-gradient(34vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 0vw 87vh, radial-gradient(66vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 73vw 5vh, radial-gradient(72vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 100vw 14vh, radial-gradient(83vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 39vw 48vh, radial-gradient(77vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 97vw 69vh, radial-gradient(80vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 91vw 82vh, radial-gradient(67vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 16vw 46vh, radial-gradient(12vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 90vw 96vh, radial-gradient(13vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 79vw 28vh, radial-gradient(91vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 95vw 68vh, radial-gradient(37vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 83vw 46vh, radial-gradient(81vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 96vw 21vh, radial-gradient(12vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 23vw 56vh, radial-gradient(13vw, #ffffff 0%, #333333 50%, #ffffff, #000000, #eeeeee) 40vw 14vh;
  background-color: #000;
  background-blend-mode: difference;
}
.stuff::before, .stuff::after {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.stuff::before {
  background: #0082ab;
  mix-blend-mode: color-burn;
}

@-webkit-keyframes ouch {
  100% {
    background-position: 92vw 48vh, -18vw -18vh, 57vw 119vh, -14vw 58vh, 104vw 85vh, 149vw -44vh, 7vw 122vh, 54vw 133vh, 81vw 91vh, 97vw -46vh, 63vw 81vh, 85vw 76vh, 54vw 139vh, 32vw -22vh, 37vw 78vh, -2vw -19vh;
  }
}

@keyframes ouch {
  100% {
    background-position: 92vw 48vh, -18vw -18vh, 57vw 119vh, -14vw 58vh, 104vw 85vh, 149vw -44vh, 7vw 122vh, 54vw 133vh, 81vw 91vh, 97vw -46vh, 63vw 81vh, 85vw 76vh, 54vw 139vh, 32vw -22vh, 37vw 78vh, -2vw -19vh;
  }
}