Enlarge "last post by"?

[sianews]

How can I make this column, on the main page, about 15% wider?

[josdegroot]

I had the same problem, maybe someone can help.

[kellym]

I noticed that no one replied to this old thread. It would be nice to make the "Last Post" column a % of the table, instead of a fixed width. How does one do this?