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Have you tried enabling the option "Make this form responsive" inside the Form Designer? This will make your form to display properly on mobile devices. Also I see that you have embedded the form in a different platform, may I know what it is? Is that something like a PhoneGap framework?
To make your form mobile responsive, see the screenshot below.
1. Click "Designer"
2. Inside Form Designer->Design Tab->Form Layout->Enable "Make this form responsive".
Also, it is recommended that you use our iFrame embed code to avoid script conflicts. Here's how to get the iFrame code: http://www.jotform.com/help/148-Getting-the-Form-iFrame-Code.
Do let us know if this helps.