a question on styling a table

izumov

my test case is http://montaj.vianor-konakovo.ru/goods1.html I had a table with gray mesh borders and I wanted black borders. In the table that was when clicking on the column heading, the font was enlarged there by visually displaying the column by which sorting is in progress. I generated css file for my purposes and pasted its contents into my CSS file-goods.css. The table cells borders became black as I wanted, however now when I click on the column heading the font is not enlarged there and I would like it to become 12px. What kind of editing is goods. css i need to produce to achieve the desired