panter/mykonote

<svg
  class="spinner"
  viewBox="0 0 66 66"
  xmlns="http://www.w3.org/2000/svg">
  <circle
    class="path"
    fill="none"
    strokeWidth="6"
    strokeLinecap="round"
    cx="33"
    cy="33"
    r="30"></circle>
</svg>

<style lang="scss">
  .spinner {
    height: 100%;
  }

  // https://codepen.io/mrrocks/pen/EiplA

  $offset: 187;
  $duration: 1.4s;

  .spinner {
    animation: rotator $duration linear infinite;
  }

  @keyframes rotator {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(270deg); }
  }

  .path {
    stroke-dasharray: $offset;
    stroke-dashoffset: 0;
    stroke-width: 4px;
    transform-origin: center;
    animation:
    dash $duration ease-in-out infinite,
    colors ($duration*4) ease-in-out infinite;
  }

  @keyframes colors {
    0% { stroke: #4285F4; }
    25% { stroke: #DE3E35; }
    50% { stroke: #F7C223; }
    75% { stroke: #1B9A59; }
    100% { stroke: #4285F4; }
  }

  @keyframes dash {
   0% { stroke-dashoffset: $offset; }
   50% {
     stroke-dashoffset: calc($offset / 4);
     transform: rotate(135deg);
   }
   100% {
     stroke-dashoffset: $offset;
     transform: rotate(450deg);
   }
  }
</style>