Root for CleanCode document Corresponds to html 'head' populates html:title element reference to files/@group in contents template Corresponds to html 'body' Adapted from xhtml type of the same name. Block-level example text Callout which flows around the main text Separate code block without wrap. Software or website incident description software web page non-software/web page Collection of files for table of contents nutshell info block function or procedure parameter function return value main section on documentation page usage block inline reference block reference