.product-quantity .qty,
.product-quantity .input-group.bootstrap-touchspin {
  align-items: stretch;
  display: flex;
}

.product-quantity .input-group.bootstrap-touchspin {
  height: 44px;
}

.product-quantity .bootstrap-touchspin input.form-control {
  height: 44px;
  margin: 0;
}

.product-quantity .bootstrap-touchspin .input-group-btn-vertical {
  display: flex;
  flex-direction: column;
  height: 44px;
  position: static;
}

.product-quantity .bootstrap-touchspin .input-group-btn-vertical > .btn {
  align-items: center;
  display: flex;
  flex: 1 1 50%;
  height: 22px;
  justify-content: center;
  margin: 0;
  padding: 0 0.55rem;
  position: static;
}

.product-quantity .bootstrap-touchspin .input-group-btn-vertical .touchspin-up::after,
.product-quantity .bootstrap-touchspin .input-group-btn-vertical .touchspin-down::after {
  margin: 0;
  position: static;
  transform: none;
}