@mixin loading-shimmer() {
  @keyframes loading-shimmer {
    0% {
      background-position: -1000px 0;
    }
    100% {
      background-position: 1000px 0;
    }
  }

  animation: loading-shimmer 2s infinite;
  background: linear-gradient(to right, #eff1f3 4%, #e2e2e2 25%, #eff1f3 36%);
  background-size: 1000px 100%;
}
