@-webkit-keyframes hueRotate {
  to {
    filter: hue-rotate(360deg);
  }
}

@keyframes hueRotate {
  to {
    filter: hue-rotate(360deg);
  }
}
@-webkit-keyframes colour-1 {
  0% {
    top: 0vh;
    left: 50vw;
  }
  25% {
    left: 0vw;
  }
  50% {
    top: 100vh;
  }
  75% {
    left: 100vw;
  }
  100% {
    top: 0vh;
    left: 50vw;
  }
}
@keyframes colour-1 {
  0% {
    top: 0vh;
    left: 50vw;
  }
  25% {
    left: 0vw;
  }
  50% {
    top: 100vh;
  }
  75% {
    left: 100vw;
  }
  100% {
    top: 0vh;
    left: 50vw;
  }
}
@-webkit-keyframes colour-2 {
  0% {
    top: 50vh;
    left: 100vw;
  }
  25% {
    top: 100vh;
  }
  50% {
    left: 0vw;
  }
  75% {
    top: 0vh;
  }
  100% {
    top: 50vh;
    left: 100vw;
  }
}
@keyframes colour-2 {
  0% {
    top: 50vh;
    left: 100vw;
  }
  25% {
    top: 100vh;
  }
  50% {
    left: 0vw;
  }
  75% {
    top: 0vh;
  }
  100% {
    top: 50vh;
    left: 100vw;
  }
}
@-webkit-keyframes colour-3 {
  0% {
    top: 100vh;
    left: 50vw;
  }
  25% {
    left: 100vw;
  }
  50% {
    top: 0vh;
  }
  75% {
    left: 0vw;
  }
  100% {
    top: 100vh;
    left: 50vw;
  }
}
@keyframes colour-3 {
  0% {
    top: 100vh;
    left: 50vw;
  }
  25% {
    left: 100vw;
  }
  50% {
    top: 0vh;
  }
  75% {
    left: 0vw;
  }
  100% {
    top: 100vh;
    left: 50vw;
  }
}
.colour-1 {
  box-shadow: 0 0 100vmax 100vmax purple;
  -webkit-animation: hueRotate 10s 0s linear infinite, colour-1 19s 0s linear infinite;
          animation: hueRotate 10s 0s linear infinite, colour-1 19s 0s linear infinite;
}

.colour-2 {
  box-shadow: 0 0 100vmax 100vmax blue;
  -webkit-animation: hueRotate 15s 0s linear infinite, colour-2 25s 0s linear infinite;
          animation: hueRotate 15s 0s linear infinite, colour-2 25s 0s linear infinite;
}

.colour-3 {
  box-shadow: 0 0 100vmax 100vmax red;
  -webkit-animation: hueRotate 20s 0s linear infinite, colour-3 15s 0s linear infinite;
          animation: hueRotate 20s 0s linear infinite, colour-3 15s 0s linear infinite;
}

@-webkit-keyframes fadeOut {
  to {
    opacity: 0;
  }
}

@keyframes fadeOut {
  to {
    opacity: 0;
  }
}