/* HTML: <div class="loader"></div> */
.loader {
    width: 50px;
    aspect-ratio: 1;
    display: grid;
  }
  .loader::before,
  .loader::after {
    content:"";
    grid-area: 1/1;
    --c:no-repeat radial-gradient(farthest-side,#25b09b 92%,#0000);
    background:
      var(--c) 50%  0,
      var(--c) 50%  100%,
      var(--c) 100% 50%,
      var(--c) 0    50%;
    background-size: 12px 12px;
    animation: l12 1s infinite;
  }
  .loader::before {
    margin: 4px;
    filter: hue-rotate(45deg);
    background-size: 8px 8px;
    animation-timing-function: linear
  }

  @keyframes l12 {
    100%{transform: rotate(.5turn)}
  }