How can I change the field size of the payment field?

But I also need to know how i can change the field size for the ‘payment’ amount as it’s cutting off the total amount brought in from the form.  Can you please advise? I’m working with the LCV order form.
Thank you!

Please try injecting the following CSS code to your form so that the payment field shall be displaying the amount completely.

#input_50_donation {

    width: 120px !important;

}

Thank you!