This module can help you build more complex pages.  It is a good way to break a pane into several columns and add modules into those columns.  Also, works well if modules tend to jump on your page into the wrong location when viewing your page.  The wrapper can be made into a rolling module.  Please make sure to preview the rolling because sometimes the module does not roll correctly.  See rolling module directions click here.

The module wrapper can be seen below this container.  I have a text/html module beside a links module.

It is possible to select settings > page settings > uncheck display container to remove the container.

Can also use it to put pictures behind text, see below.  The top one is the finished product and the bottom one shows the containers inside the module wrapper.