Hey Bobby, looks like there are some required dimensions you have to work within.
Found some guidance in
this thread -- there is a template you can import and work from as a starting point (you may be able to reverse engineer the dimensions from there and apply them to your current page to save work).
"You can import a Facebook-friendly landing page template from the Marketo Program Library. The template meets the Facebook Pages specs and no scrollbars should appear.
Import a program and choose the name of the program called "Facebook Tab Template."
More info on importing a program here.
https://community.marketo.com/MarketoArticle?id=kA050000000L7xvCAC "