Too much padding / space between two iFrames stacked on content page rendered in CMS

1. Navigate to Content Management > Pages.
2. Filter the list for url suffix is order_status.
3. Click the Edit Page link.
4. Select Add Content > Content Blocks > My Orders and position it under the existing IFrame block.
5. Navigate to the CMS order_status.doc page.
6. When the CMS page renders, drill into a record in the top IFrame list.
   There is considerable space between the IFrames.

As a best practice, do not stack multiple IFrames on a single content page.