ebike-plus-ui/src/style/loading-page.scss

.loading-page {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* HTML: <div class="dc-loader"></div> */
.dc-loader {
  width: 45px;
  aspect-ratio: 1;

  --c: no-repeat linear-gradient(rgb(var(--primary-6)) 0 0);

  background:
    var(--c) 0% 50%,
    var(--c) 50% 50%,
    var(--c) 100% 50%;
  background-size: 20% 100%;
  animation: l1 1s infinite linear;
}

@keyframes l1 {
  0% {
    background-size:
      20% 100%,
      20% 100%,
      20% 100%;
  }
  33% {
    background-size:
      20% 10%,
      20% 100%,
      20% 100%;
  }
  50% {
    background-size:
      20% 100%,
      20% 10%,
      20% 100%;
  }
  66% {
    background-size:
      20% 100%,
      20% 100%,
      20% 10%;
  }
  100% {
    background-size:
      20% 100%,
      20% 100%,
      20% 100%;
  }
}