.ec-size .ec-store.ec-store__product-page .form-control--button:not(.details-product-purchase__add-more) {
  background-color: #504741;
  border-radius: 3px;
}

.ec-size .ec-store.ec-store__cart-page .form-control--button {
  background-color: #504741;
  border-radius: 3px;
}

.ec-size .ec-store.ec-store__checkout-page .form-control--button {
  background-color: #504741;
  border-radius: 3px;
}