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.
When you say twitching do you mean that it's jumping around like moving to the top after every selection? If so, you can add nojump parameter on the URL in your iframe.
<iframe id="JotFormIFrame-62523476946364" onload="window.parent.scrollTo(0,0)" allowtransparency="true" src="https://form.jotformeu.com/62523476946364?nojump" frameborder="0" style="width:100%; height:347px; border:none;" scrolling="no">
If problem persists, please let us know.
Спасибо! Это помогло.