Just as a page has a skin, modules have containers. Containers control the look and feel of a single module. A container is a template that is applied to each module that determines the layout and general graphical design of the module. A container can be applied to a single module or an entire site. Containers contain module backgrounds and font properties.
In addition, containers also contain CMS controls that provide certain functionality to your site such as display of the module title, provide a print link or insert a settings menu.
Before your site is brought online TS and Graphics will work together with you in creating any containers that you will be using on your site.