.loop {
  width: 100%;
  overflow: hidden;
}
.loop__box {
  display: flex;
  align-items: flex-start;
}
.loop__box img {
  max-height: 12rem;
  max-width: initial;
  aspect-ratio: 1 / 0.15;
}
.loop__box img:first-child {
  animation: loop 50s -25s linear infinite;
}
.loop__box img:last-child {
  animation: loop2 50s linear infinite;
}

@keyframes loop {
  0% {
    transform: translateX(100%);
  }
  to {
    transform: translateX(-100%);
  }
}
@keyframes loop2 {
  0% {
    transform: translateX(0);
  }
  to {
    transform: translateX(-200%);
  }
}