use {
  animation: move-forever 2s linear infinite;
}
use:nth-child(2) {
  animation-duration: 2.5s;
  animation-delay: -1.5s;
}
use:nth-child(1) {
  animation-duration: 5s;
}

@keyframes move-forever {
  0% {
    transform: translate(-2px, 0);
  }
  100% {
    transform: translate(0px, 0);
  }
}
/* layout only*/
body {
  margin: 0;
  overflow: hidden;
  background-color: #123;
  position: relative;
}

.main-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12rem;
  font-family: Arial, sans-serif;
  font-weight: bold;
  color: #cccccc;
  margin: 0;
  z-index: 10;
  white-space: nowrap;
}

svg {
  width: 100vw;
  height: 100vh;
  position: relative;
  z-index: 1;
}