html {
  background-color: #000;
  overflow: hidden;
}

.dot {
  height: 20px;
  width: 20px;
  border-radius: 100%;
  position: absolute;
  opacity: 0;
  -webkit-transform-origin: 0% 0%;
  -ms-transform-origin: 0% 0%;
  transform-origin: 0% 0%;
}

#hold {
  position: absolute;
  -webkit-animation: spin 10s linear infinite;
  animation: spin 10s linear infinite;
  top: 50%;
  left: 50%;
}

@-webkit-keyframes spin {
  from {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }

  to {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}

@keyframes spin {
  from {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }

  to {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}
@-webkit-keyframes osc {
  0% {
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    opacity: 0;
  }

  50% {
    -webkit-transform: scale(1.5);
    transform: scale(1.5);
    opacity: 1;
  }

  100% {
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    opacity: 0;
  }
}
@keyframes osc {
  0% {
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    opacity: 0;
  }

  50% {
    -webkit-transform: scale(1.5);
    transform: scale(1.5);
    opacity: 1;
  }

  100% {
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    opacity: 0;
  }
}
@-webkit-keyframes rainbow {
  0% {
    background: #df2020;
  }

  25% {
    background: #80df20;
  }

  50% {
    background: #20dfdf;
  }

  75% {
    background: #7f20df;
  }

  100% {
    background: #df2020;
  }
}
@keyframes rainbow {
  0% {
    background: #df2020;
  }

  25% {
    background: #80df20;
  }

  50% {
    background: #20dfdf;
  }

  75% {
    background: #7f20df;
  }

  100% {
    background: #df2020;
  }
}