.loader-parent {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.loader {
  width: 7px;
  aspect-ratio: 1;
  border-radius: 50%;
  animation: l5 1s infinite linear alternate;
}
@keyframes l5 {
  0% {
    box-shadow: 10px 0 #000, -10px 0 #0002;
    background: #000;
  }
  33% {
    box-shadow: 10px 0 #000, -10px 0 #0002;
    background: #0002;
  }
  66% {
    box-shadow: 10px 0 #0002, -10px 0 #000;
    background: #0002;
  }
  100% {
    box-shadow: 10px 0 #0002, -10px 0 #000;
    background: #000;
  }
}