As mentioned in a BalausC comment, you're probably looking for CSS (cascading style sheets) rather than HTML attributes.
To place an element, a <table>
in your case you want to use indents or fields.
the difference between the margins and the gaskets can be considered as a "window model":

Image from HTML Dog article on fields and additions http://www.htmldog.com/guides/cssbeginner/margins/ .
I highly recommend the article above if you need to learn how to use CSS.
To move the table down and to the right, I would use fields like:
table{ margin:25px 0 0 25px; }
This is abbreviated, so the fields are as follows:
margin: top right bottom left;
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