Modifying Padding

[purnomo]

I hope i can modify padding of W1,W2,W3 (in attached picture) but i dont know where is the location and it names. I tried to find in style.css but not found.

Thanks to any comment

[eCommerce Core]

I sugest that you use Firefox firebug or any other browser HTML/CSS inspector to check your site and locate correct file to edit.