.spinner {
    position: absolute;
    width: 18vh;
    height: 18vh;
    top: 0;
    left: 0;
    border-radius: 9vh;
    box-shadow: 0 0.4vh 0 0 orange;
    -ms-animation: uil-ring-anim 1s linear infinite;
    -moz-animation: uil-ring-anim 1s linear infinite;
    -webkit-animation: uil-ring-anim 1s linear infinite;
    -o-animation: uil-ring-anim 1s linear infinite;
    animation: uil-ring-anim 1s linear infinite;
}

@keyframes uil-ring-anim {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}