What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
By the way, I have escalated the Size issue on Dynamic Textbox Widget to our developers.
I was able to reproduce the problem so this needs to get fixed. You may consider the solution using inject CSS I've provided on your other thread for now.
The size setting has been fixed.
Please check and let us know.