When I open a document to sign in AssureSign. The header and footer each takes a significant amount of space/real estate.  This left little real estate for the actual document to be viewed.  How can I expand this document viewer part. The document viewer has a style/class but I’m not sure if and how I can update this style/class? or is there a setting that I can change in AssureSign which will allow me to have a full-page view of a document to be signed?