.spin-box {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.spin {
  position: relative;
  width: 3rem;
  height: 3rem;
  border: solid 0px;
  border-radius: 4rem;
  background-color: rgba(0,0,0,.1);
  margin: 1rem;
}

.spinner {
  position: absolute;
  top: -.2rem;
  left: -.2rem;
  width: 3.4rem;
  height: 3.4rem;
  border: solid 2px transparent;
  border-top-color: orangered;
  border-bottom-color: orangered;
  border-radius: 4rem;
  animation: spinning 2s linear infinite;
}

@keyframes spinning {
  0% {
    transform: rotate(0deg) scale(1.1);
  }
  50% {
    transform: rotate(180deg) scale(1.3);
    transform: scaleX(15px);
  }
  100% {
    transform: rotate(360deg) scale(1.1);
  }
}