table format using css

I'm working on a form that prints out as a PDF.  I'm using css to style the page.  In the screenshot provided, what is the best way to use css to format the top table and middle table?

The top table has no border around the top left cell and the text needs to be aligned left top.  The middle table has a bunch of content within each table cell, which would be a nested table?

Thanks for any help!
Regards.
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