The following information is gathered from the default output for Joomla! 1.5 core modules and assumes that no template overrides are in place.
Note also that core module chrome, as generated by the System template, will wrap a module in a defined manner and in some instances apply additional CSS formatting.
mod_archive
None
mod_banners
* .bannergroup class applied to surrounding
* .bannerheader class applied to
of header text if it exists
* .banneritem class applied to
* .banneritem class applied to
for each item
* .bannerfooter class applied to
* .bannerfooter class applied to
of footer text if it exists
mod_breadcrumb
* .breadcrumbs class applied to a element that holds the path links
* .pathway class applied to a element that holds the path links
* .pathway class is also applied to each link
mod_feed
* .moduletable class applied to of no set width
mod_breadcrumb
* .breadcrumbs class applied to a element that holds the path links
* .pathway class applied to a element that holds the path links
* .pathway class is also applied to each link
mod_feed
* .moduletable class applied to