Those of us who learned HTML early in the game are familiar with HTML table parameters cellpadding and cellspacing.  In a positive way they were deprecated in HTML4 so you must use CSS to control the padding and spacing now.

Here is how you do it in CSS:

border-collapse: collapse;

A nice line to place in your global CSS file (if you use one) is:

table { border-collapse: collapse; }

Digg!