How to get css background color on tag to span entire row

Question

I have tried everything I can think of in css in order to get a background color to span an entire table row ( tag) But I keep getting a white border around each

Answer 1

Firefox and Chrome are different
Chrome ignores the TR's background-color
Example: http://jsfiddle.net/T4NK3R/9SE4p/

In FF the TD gets red corners, in Chrome not