@keyframes myShimmer {
  0% {
    background-position: -450px 0;
  }
  100% {
    background-position: 450px 0;
  }
}

.myShimmer {
  background: linear-gradient(to right, #f5f5f5 8%, #e0e0e0 18%, #f5f5f5 33%);
  background-size: 1000px 100%;
  animation: myShimmer 1.5s infinite linear;
}