How Can I make paypal text boxes Bigger?

I am designing a new site.

How Can I make the Paypal "enter your text here" boxes Bigger?

There is nothing on their main site.

these boxes are very small

if anyone knows that would help.

big thanks in advance

I'm not sure what PayPal "enter your text here" boxes you're referring to?

Are these boxes part of your order form / payment form, or are they part of PayPal's website (when your visitors are going through the payment process)?