.loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 12px;
  z-index: 103;
}
.loader.fixed {
  position: fixed;
}
.loader div {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 30px 30px;
  animation: loading 0.9s linear infinite;
  z-index: 100;
}
.loader div:after {
  content: "";
  display: block;
  position: absolute;
  background: white;
  border-radius: 20%;
  top: 5px;
  left: 27px;
  width: 4px;
  height: 13px;
}
.loader div:first-child {
  transform: rotate(0);
  animation-delay: -0.9s;
}
.loader div:nth-child(2) {
  transform: rotate(35deg);
  animation-delay: -0.8s;
}
.loader div:nth-child(3) {
  transform: rotate(70deg);
  animation-delay: -0.7s;
}
.loader div:nth-child(4) {
  transform: rotate(105deg);
  animation-delay: -0.6s;
}
.loader div:nth-child(5) {
  transform: rotate(140deg);
  animation-delay: -0.5s;
}
.loader div:nth-child(7) {
  transform: rotate(180deg);
  animation-delay: -0.4s;
}
.loader div:nth-child(8) {
  transform: rotate(215deg);
  animation-delay: -0.3s;
}
.loader div:nth-child(9) {
  transform: rotate(250deg);
  animation-delay: -0.2s;
}
.loader div:nth-child(10) {
  transform: rotate(290deg);
  animation-delay: -0.1s;
}
.loader div:nth-child(11) {
  transform: rotate(325deg);
  animation-delay: 0s;
}

@keyframes loading {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}