.quantity_block_wrapper .item-stock.in-stock span {
    background-color: #5fa800;
    color: white;
}
.quantity_block_wrapper .item-stock span {
  border: 1px solid #5fa800;
  color: #5fa800;
  padding: 5px 15px;
  border-radius: 3px;
  font-weight: 500;
  font-size: 14px;
}