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I did check your webpage where you have embedded your form and found that you are still using your form's script embed code. Please check the screenshot below:
Please note that for your embedded form to be mobile responsive, we recommend that you should embed your form using its iFrame embed code.
Here are the changes I would suggest to make your form mobile responsive:
#1. Please embed your form using its iFrame embed code. The following guide should help you how to grab your form's iFrame embed code: https://www.jotform.com/help/148-Getting-the-form-iFrame-code
#2. I would suggest you to enable the mobile responsive property of form. The following guide should help you: https://www.jotform.com/help/311-How-to-make-forms-mobile-responsive
Hope this helps.
Do get back to us if you have any questions.