How to resize edit box

[JJ297]

I have a details view on the page with the edit link, when I click on
the edit button I get my data to edit but the box is so small. How do
I expand this box so I can see all of my text to edit?

Thanks in advance for your help.

 

[Guest]

I have a details view on the page with the edit link, when I click on
the edit button I get my data to edit but the box is so small. How do
I expand this box so I can see all of my text to edit?

Thanks in advance for your help.

ItemStyle-Width?