Session
    
    setPlaceholderShownStyle()
setPlaceholderShownStyle()
Sets the styling for the hosted field to the supplied styling attributes when placeholder text on the hosted field is visible.
This function supports the Multiple Hosted Session functionality.
Usage
PaymentSession.setPlaceholderShownStyle([HostedFieldsRole], styles, scope)
Example
PaymentSession.setPlaceholderShownStyle(["card.number", "card.nameOnCard"], {
  backgroundColor: 'orange',
  border: '1px solid blue'
});
Arguments
        HostedFieldRole
        
        String
        REQUIRED
    
    
            The field role for the card field rendered in an iFrame and hosted on the Mastercard Gateway. Valid
            field
            roles:
        
        card.nameOnCard
            card.number
            card.expiryMonth
            card.expiryYear
            card.securityCode
            giftCard.number
            giftCard.pin
            ach.bankAccountNumber
            ach.bankAccountNumberConfirmation
            ach.bankAccountHolder
            ach.routingNumber
            
        styles
        
        Object
        
    An object containing JavaScript CSS properties.
        scope
        
        String
        
    The optional named instance of a card payment data set within a session. See Multiple Hosted Sessions for more information.
Return Value
None