How do i change the color.......?

[ssbeats]

Hi!

i want to change the background color of my shopping cart.

Here are the associated class id's.....

.cartProductDisplay, .cartUnitDisplay, .cartTotalDisplay, .cartRemoveItemDisplay, .cartQuantityUpdate, .cartQuantity, #cartInstructionsDisplay, .cartTotalsDisplay {
padding: 0.5em 0em;
}


So how do i change the background color of these items?

Thanks!