How to make Telephone Textboxes wider?

How do I make boxes wider? Telephone boxes aren't long enough. 

http://form.jotform.co/form/41237950835862?

Thank you :) 

Oh, also, how do I make Text Area boxes wider?

@AprilRosePhotography

In order to make Taxt Area Wider, please take a look at the following figures:

Click and drag on the lower right corner,  move right/left to adjust width, move up/down to adjust height, as below indicated:

You can also limit Minimun and Maximun Entries in Words or Letters:

I we can assist you further, please do contact us.

Hi there,

Yes, this changes it in edit mode but it stays the same when I preview it... 

Thank you very much! I will check this out tomorrow :) 

If I wanted to change the width, I would just change all of the 100% to whatever percentage I want?

Thanks so much for the great help :)