How do I remove these grey lines

On this page I have two grey vertical lines on either side of the product listing box in the centre of the page.

There was a heading on this box previously that I have removed (by modifying the product_listing.php) and now I want to get rid of the side lines and bottom line from the product list and I can't work out how to do it.

Many thanks in advance for any assistance with this

It would probably help if I put a link to the page in question.

http://www.fastbikegear.co.nz/index.php?main_page=index&cPath=67

If it also helps I am using the ZJ Black template. These two little grey lines are currently conspiring to drive me mad! I can find the code to change the navColumn one and two vertical lines but not the lines on either side of the product listing.

Find this in stylesheet.css and change the '1px' to '0px'.

.tabTable {border-left: 1px solid #ccc;
border-right: 1px solid #ccc;
border-bottom: 1px solid #ccc;}

stevesh:

Find this in stylesheet.css and change the '1px' to '0px'.

.tabTable {border-left: 1px solid #ccc;
border-right: 1px solid #ccc;
border-bottom: 1px solid #ccc;}

stevesh many thanks I was going mad looking for that. Brilliant, many thanks for the help it's made such a difference to the way the site looks!