how can i make my form mobile responsive in the embedded light box?

I have a form embedded in my site at the top right. (CONTACT US) On mobile devices the form is to big and not responsive. Also on my laptop it pops up with a blank form over the actual form

Unfortunately, our Lightbox embed option is not optimized for mobile devices. On regards of the blank form popping up on top:

I think it's due to having to LightBox codes embedded in your site:

Remove the extra code, or simply make sure to remove any LightBox code of your jotform, and get a fresh LightBox code: https://www.jotform.com/help/220-How-to-Create-a-Lightbox-Form 

Let us know if you need more help.