@media only screen and (min-width:768px) {
.kit_product_info .price_calculator .div_calculator .form-group .col-4, .kit_product_info .price_calculator .div_calculator .form-group .col-8 {
  -ms-flex: 0 0 100%;
  flex: 0 0 100%;
  max-width: 100%;
}
}