.gfield--type-address_postcodenl .address_street.address_input_hidden,
.gfield--type-address_postcodenl .address_city.address_input_hidden
{
   display: none !important;
}

.gfield--type-address_postcodenl .address_error
{
   display: block;
   min-width: 100%;
}

.gfield--type-address_postcodenl .address_error.address_error_hidden
{
   display: none !important;
}