Acme.BookStore.HttpApi.Host/node_modules/@fortawesome/fontawesome-free/scss/_animated.scss

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// Animated Icons
// --------------------------

.#{$fa-css-prefix}-spin {
  animation: fa-spin 2s infinite linear;
}

.#{$fa-css-prefix}-pulse {
  animation: fa-spin 1s infinite steps(8);
}

@keyframes fa-spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}