When activated, this plugin causes the body_class template tag to output five additional classes. On single posts (is_single) : postname-[permalink slug] single-[category slug] parent-[parent category slug] (all parent and grandparent categories in a hierarchy of any depth) On pages (is_page) : pagename-[permalink slug] On category archives (is_archive and is_category) : parent-category-[parent category slug] (all parent and grandparent categories in a hierarchy of any depth) Custom Taxonomies As of version 1.3, the plugin now supports custom hierarchical taxonomies. The new body classes take the following form: On single posts (is_single) : single-[taxonomy]-[term slug] parent-[taxonomy]-[parent term slug] (all parent and grandparent terms in a hierarchy of any depth) On taxonomy archives (is_archive and is_tax) : parent-term-[parent term slug] (all parent and grandparent terms in a hierarchy of any depth) For single posts, the taxonomy name is included in the class name, because I felt it was important to be able to distinguish between taxonomies in cases where a post is assigned to more than one custom taxonomy, and when the same term might appear in two or more taxonomies. For example, suppose you had a real estate site with property listings in New York City, and you had two custom taxonomies defined: City and State. Then the classes would look like this: single-city-new-york single-state-new-york Multisite Support As of version 1.3, the plugin...