Move Cart Placement

The designer of ADIRONDACK template placed the shopping cart (.absolute-cart-box) on the top right corner, which covers the site's navigation (or site title, depending on set up). I need to move the cart to the bottom right. Here is what I have:

.absolute-cart-box { position: fixed !important; right: 10px !important; bottom: 10px !important; z-index: 9000; }

Above code does not work. How do I override the original CSS, which is

.absolute-cart-box { position: fixed; right: 10px ; top: 10px; z-index: 9000; }

Thanks