This tag is often left empty, without attributes, because
people usually put the information in each of the table cells themselves.
Any attributes assigned values will hold true in the entire row.
Here are the possible attributes
bgcolor - Sets the background color for the entire row
align - Sets the justification of all the cells in the row (can be "left", "right", or "center")
valign - Sets the vertical justification of all the cells in the row (can be "top", "middle", "bottom", or "baseline")