cunningham/packages/react/src/components/Loader/_index.scss

.c__loader {
  border-radius: 50%;
  position: relative;
  animation: rotate 1s linear infinite;

  &::before,
  &::after {
    content: "";
    box-sizing: border-box;
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border-style: solid;
    border-color: var(--c--theme--colors--primary-700);
    animation: prixClipFix 2s linear infinite;
  }

  &::after {
    border-color: var(--c--theme--colors--primary-400);
    animation: prixClipFix 2s linear infinite,
      rotate 0.5s linear infinite reverse;
    inset: 6px;
  }

  span {
    display: none;
  }

  &--small {
    width: 24px;
    height: 24px;

    &::before,
    &::after {
      border-width: 2px;
    }
  }

  &--medium {
    width: 48px;
    height: 48px;

    &::before,
    &::after {
      border-width: 5px;
    }
  }
}

@keyframes rotate {
  0%   {transform: rotate(0deg)}
  100%   {transform: rotate(360deg)}
}

@keyframes prixClipFix {
  0%   {clip-path:polygon(50% 50%,0 0,0 0,0 0,0 0,0 0)}
  25%  {clip-path:polygon(50% 50%,0 0,100% 0,100% 0,100% 0,100% 0)}
  50%  {clip-path:polygon(50% 50%,0 0,100% 0,100% 100%,100% 100%,100% 100%)}
  75%  {clip-path:polygon(50% 50%,0 0,100% 0,100% 100%,0 100%,0 100%)}
  100% {clip-path:polygon(50% 50%,0 0,100% 0,100% 100%,0 100%,0 0)}
}