Left justify table headers in orderpage

Hi

The table headers on the order page (order history) are centered but the column text is left justified. How do I get the table headers to be left justified as well? I have tried editing the frontend css but I can't figure out how to do it properly.

I solved the problem myself by adding this line to the frontend css:

#hikashop_order_main th{
text-align:left;
}