How can I adjust the width of the Credit Card field?

The dollar amount field is too short.  How can I make longer?

Try the following CSS codes to adjust the width of the charge field:

#input_70_donation {

   width: 60px;

}

(adjust the amount in px upon your discretion)

Before:

After:

Here's where/how to insert the codes:

Complete guide: How-to-Inject-Custom-CSS-Codes