Question re "side panel" on right side of your website

[freecicero]

I could not figure out where else to ask this, but could you tell me how you designated the text that appears on the right side of your website template (when viewed on a desktop)? It appears in a grey box in a way that does not seem possible in Zim itself. Is it enclosed in a table or some other special format to tell the template to place it on the right? Thank you!

The text I am referring to is this one:

"Potential natural vegetation (PNV) is defined here as "vegetation that would persist under the current conditions without human interventions". As such, it can be considered a baseline or null model to assess the vegetation that could be present in a landscape under the current climate and edaphic conditions, including conditions created or altered by man. The map is based on a reconstruction of the pre-colonial vegetation using historical national and local vegetation maps in combination with input from leading experts and an extensive literature review. The assumption is made that the pre-colonial vegetation represents a close approximation of the current PNV. For more information, see the documentation that accompanies the PNV map."

I also note that on a few pages you have pictures that are right justified, which again I did not think was possible in normal Zim.

Thank you!