@-webkit-keyframes spinner-border {
    to {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }

  @keyframes spinner-border {
    to {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }

  .spinner-border {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    vertical-align: text-bottom;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    -webkit-animation: spinner-border .75s linear infinite;
    animation: spinner-border .75s linear infinite;
  }

  .spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
  }

  @-webkit-keyframes spinner-grow {
    0% {
      -webkit-transform: scale(0);
      transform: scale(0);
    }
    50% {
      opacity: 1;
    }
  }

  @keyframes spinner-grow {
    0% {
      -webkit-transform: scale(0);
      transform: scale(0);
    }
    50% {
      opacity: 1;
    }
  }

  .spinner-grow {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    background-color: currentColor;
    border-radius: 50%;
    opacity: 0;
    -webkit-animation: spinner-grow .75s linear infinite;
    animation: spinner-grow .75s linear infinite;
  }

  .spinner-grow-sm {
    width: 1rem;
    height: 1rem;
  }

  .gi-2x{font-size: 2em;}
.gi-3x{font-size: 3em;}
.gi-4x{font-size: 4em;}
.gi-5x{font-size: 5em;}