.add_to_cart_button {
  position: relative;
}
.add_to_cart_button.loading:after {
  font-family: WooCommerce;
  content: "\e01c";
  vertical-align: top;
  font-weight: 400;
  position: absolute;
  top: 12px;
  right: 6px;
  animation: spin 2s linear infinite;
}

.add_to_cart_button.added:after {
  font-family: WooCommerce;
  content: "\e017";
  top: 12px;
  right: 6px;
  position: absolute;
}