adjust spacing between tables in html

I have 2 tables used as 2 rows for one structure:

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• First Table have different width
• Second Table have different width

I set spacing parameters to 0 still there is a slight difference between first table and second table

How to overcome this problem?

Probably margins or borders or padding. Heres an example with no padding and no margins.

http://jsfiddle.net/hnnAN/1/