.spinner {
  position: relative;
  text-indent: initial;
}

.spinner::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: 6px solid transparent;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: button-loading-spinner 1s ease infinite;
}

.green-button.spinner::after {
  border-top-color: var(--white);
}

.white-button.spinner::after {
  border-top-color: var(--grey);
}

@keyframes button-loading-spinner {
  from {
    transform: rotate(0turn);
  }

  to {
    transform: rotate(1turn);
  }
}