How I reduce the horizzontal margin on a form's description?

Hi. I think this image I edited explains well my question.. How do I obtain it?
PRessing "ENTER" is not usefull, as the consequence of it is a "comfirmation" of what I wrote and not going on the following line...

Thanks for your answer.

Marco 

I didn't find the form ID from the ticket description in your account. Please let us know what it is if you need further assistance beyond the reply below.

JotForm no longer supports entering line breaks with
.  The html is stripped out. Instead you can:

1) Adjust the form width and/or label width:

Alternatively,

2) Use the TEXT(html) fiel found in Form Tools. Using this field, you can add read-only text with styles on your form