.loadingSpinner {
  border: 2px solid #FFF;
  border-top-color: transparent;
  border-left-color: transparent;
  width: 50px;
  height: 50px;
  opacity: 0.8;
  border-radius: 50%;
  animation: loadingSpinner 0.7s infinite linear;
  -webkit-animation: loadingSpinner 0.7s infinite linear;
}

button .loadingSpinner {
  position: relative;
}

@keyframes loadingSpinner {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes loadingSpinner {
  from {
    -webkit-transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
  }
}



button:disabled {
  cursor: default;
}

.centerForDemo .loadingSpinner {
  margin: 0px auto;
}