How can I make a text box wider than it is?

You can increase the text box width by injecting this custom CSS code:

#input_19 {
width: 310px;
} 

#input_20 {
width: 310px;
} 

#input_22 {
width: 310px;
} 

#input_23 {
width: 310px;
} 

Please check this guide on How-to-Inject-Custom-CSS-Codes. Please take note that you can change the width to your own preference.

Here's the screenshot of the result:

Let us know if you want the code for the other text boxes too, we'll be glad to help you. Thank you.