.loader {
  position: absolute;
  z-index: 1000;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  text-align: center;
  display: block;
  background: url(../img/lightness.png), #09ffb3;
}

.loader::before,
.loader::after {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  margin: auto;
  display: block;
  width: 10px;
  height: 10px;
  background-color: #020202;
  border-radius: 50%;
  offset-path: path("M23.71 5.21l17.58 17.58a12.43 12.43 0 0 0 17.57 0 12.43 12.43 0 0 0 0-17.57 12.43 12.43 0 0 0-17.57 0L23.71 22.79a12.43 12.43 0 0 1-17.57 0 12.43 12.43 0 0 1 0-17.57 12.43 12.43 0 0 1 17.57-.01z");
  animation: loader 1500ms cubic-bezier(0.645, 0.045, 0.355, 1) infinite;
  content: "";
}

.loader::after {
  animation-delay: 100ms;
}

@keyframes loader {
  0% { offset-distance: 0%; }
  100% { offset-distance: 100%; }
}