The template presented below describes the various areas of the default template (template.css).
In template.css, the content_right and content_left panels will display if they are specified in content_right.html and content_left.html respectively.
The template sample presented below describes the various areas of template2.css.
In template2.css, the content_right panel is removed. The content_center panel extends to the right edge.
The template sample presented below describes the various areas of template3.css.
In template3.css, the content_left panel replaces the content_right. The content_center panel extends to the left edge.