/* HTML: <div class="loader"></div> */
.loader {
  width: 20px;
  aspect-ratio: 1;
  background: rgb(5,96,253);
  box-shadow: 0 0 60px 15px rgb(5,96,253);
  transform: translate(-80px);
  clip-path: inset(0);
  animation:
    l4-1 0.5s ease-in-out infinite alternate,
    l4-2 1s   ease-in-out infinite;
}
@keyframes l4-1 {
  100% {transform: translateX(80px)}
}
@keyframes l4-2 {
  33% {clip-path: inset(0 0 0 -100px)}
  50% {clip-path: inset(0 0 0 0)     }
  83% {clip-path: inset(0 -100px 0 0)}
}