// see https://ihatetomatoes.net/create-css3-spinning-preloader/

.butter-component-spinner {
  display: block;
  position: relative;
  left: 50%;
  top: 50%;
  width: 90px;
  height: 90px;
  margin: -45px 0 0 -45px;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: #3498db;
  -webkit-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
  animation: spin 2s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */

  &.small {
    width: 50px;
    height: 50px;
    margin: -25px 0 0 -25px;
  }

  &.tiny {
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;

    &:before {
      top: 2px;
      left: 2px;
      right: 2px;
      bottom: 2px;
    }

    &:after {
      top: 5px;
      left: 5px;
      right: 5px;
      bottom: 5px;
    }
  }

  &:before {
    content: "";
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #e74c3c;
    -webkit-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 3s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
  }

  &:after {
    content: "";
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #f9c922;
    -webkit-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 1.5s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
  }
}

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(0deg); /* IE 9 */
    transform: rotate(0deg); /* Firefox 16+, IE 10+, Opera */
  }
  100% {
    -webkit-transform: rotate(360deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(360deg); /* IE 9 */
    transform: rotate(360deg); /* Firefox 16+, IE 10+, Opera */
  }
}

@keyframes spin {
  0% {
    -webkit-transform: rotate(0deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(0deg); /* IE 9 */
    transform: rotate(0deg); /* Firefox 16+, IE 10+, Opera */
  }
  100% {
    -webkit-transform: rotate(360deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(360deg); /* IE 9 */
    transform: rotate(360deg); /* Firefox 16+, IE 10+, Opera */
  }
}