What code do I need to insert in the global.css to change the 'add to cart' button style

[generalexperts]

I would like to change the add to cart button style for different pages, IE the manufacturing page, products page, and the home page (homefeatured block). When I make changes it changes all of them. What code do I need to write in the global.css to make this differentiation? I have been told I can add this text anywhere in the global.css file:

 

#manufacturers #add_to_cart {styles here}

#index .ajax_add_to_cart_button {styles here}

 

I haven't been able to get anything to work. I appreciate your help! Thank you!

[vekia]

duplicated: http://www.prestashop.com/forums/topic/309128-how-to-change-add-to-cart-buttons-for-different-parts-of-my-site/