@-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: 2rem;height: 2rem;vertical-align: text-bottom;border: .25em solid currentColor;border-right-color: transparent;border-radius: 50%;-webkit-animation: spinner-border .75s linear infinite;animation: spinner-border .75s linear infinite;margin: 0 auto;
      position: absolute;left: 0;right: 0;}
  .spinner-border-sm {width: 1rem;height: 1rem;border-width: .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;}