Preview Submission Error

When I go to Preview Submission widget, it distorts my image I have at the top of my form.  How can that be fixed?  

Try inserting this css code.

#previewContainer li>div img{
      max-width: 500px!important;
}

Guide on How-to-Clone-an-Existing-Form-from-a-URL

Here is the sample screen shot.

Please let us know if we can be of further assistance.