Better way to right align text in HTML Table

Question

I have an HTML table with large number of rows, and I need to right align one column.

I know the following ways,

..

        

Answer 1

if you have only two "kinds" of column styles - use one as TD and one as TH. Then, declare a class for the table and a sub-class for that table's THs and TDs. Then your HTML can be super efficient.