Convert the image markers in HTML from the Rich Text editor into image tags.
When you add images in the Rich Text editor of the Zotonic admin, the HTML body text does not store <img> tags, but instead, special markers containing the picture id plus size and alignment hints.
The show_media tag converts these special markers (which are in fact HTML comments) back into image tags. For this, it uses the template called _body_media.tpl. This template is located in mod_base and can be overruled with your own.
Images that are inlined in the body text can have these parameters:
These parameters can be set in the editor dialog “Insert a Zotonic media item”.