.stockproducts-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 20px;
  border: 1px solid #ccc;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
}

.stockproducts-popup input,
.stockproducts-popup button {
  margin: 10px 5px;
}