block: A rectangular block of text, equivalent to the CSS display:block property. This is generally an outer containing class.
Usually contained by: Blocks, list items, columns.Can usually contain: Blocks, inlines, links, lists, columns, images, code
inline: A span of text with an unusual property, like italics or boldface or a color change. This is generally an innermost class: Most other tags can't go inside it, with some exceptions.
Usually contained by: Blocks, list items, columns, links, inlines.Can usually contain: Inlines, links, images.
link: A span of text that is a clickable link to somewhere. Links usually cannot be placed inside other links.
Usually contained by: Blocks, list items, columns, inlines.Can usually contain: Inlines, images.
list: A block-like region that may only contain list items.
Usually contained by: Blocks, list items, columns.Can usually contain: List items.
listitem: A single item in a list, this is a block-like region that can contain just about anything else.
Usually contained by: Lists.Can usually contain: Blocks, inlines, links, lists, columns, images, code
columns: A block-like region that may contain multiple parallel columns of blocks within it.
Usually contained by: Blocks, list items, columns.Can usually contain: Blocks, inlines, links, lists, columns, images, code
nextcol: An infinitely small class (with no content) designed to separate columns of a column group.
Usually contained by: Columns.Can usually contain: (nothing; has no body)
image: An inline text-like object that is replaced with external content.
Usually contained by: Blocks, inlines, links, list items, columns, code.Can usually contain: (nothing; has no body)
code: A block-like region that reproduces its contents exactly.
Usually contained by: Blocks, list items, columns.Can usually contain: (nothing; body is verbatim)
The types of classes currently defined
block: A rectangular block of text, equivalent to the CSS display:block property. This is generally an outer containing class. Usually contained by: Blocks, list items, columns. Can usually contain: Blocks, inlines, links, lists, columns, images, code
inline: A span of text with an unusual property, like italics or boldface or a color change. This is generally an innermost class: Most other tags can't go inside it, with some exceptions. Usually contained by: Blocks, list items, columns, links, inlines. Can usually contain: Inlines, links, images.
link: A span of text that is a clickable link to somewhere. Links usually cannot be placed inside other links. Usually contained by: Blocks, list items, columns, inlines. Can usually contain: Inlines, images.
list: A block-like region that may only contain list items. Usually contained by: Blocks, list items, columns. Can usually contain: List items.
listitem: A single item in a list, this is a block-like region that can contain just about anything else. Usually contained by: Lists. Can usually contain: Blocks, inlines, links, lists, columns, images, code
columns: A block-like region that may contain multiple parallel columns of blocks within it. Usually contained by: Blocks, list items, columns. Can usually contain: Blocks, inlines, links, lists, columns, images, code
nextcol: An infinitely small class (with no content) designed to separate columns of a column group. Usually contained by: Columns. Can usually contain: (nothing; has no body)
image: An inline text-like object that is replaced with external content. Usually contained by: Blocks, inlines, links, list items, columns, code. Can usually contain: (nothing; has no body)
code: A block-like region that reproduces its contents exactly. Usually contained by: Blocks, list items, columns. Can usually contain: (nothing; body is verbatim)