How can I change the gray background to white?

How can I change the gray background to white with NO shadow?  Just to a white page AND a white background.  It looks better when integrated on my website.

Please inject the following CSS code as explained on this guide: http://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

.supernova{

    background: none !important;

}

.form-all{

    box-shadow: none !important;

}

Let us know if you need more help.