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The content of each page is organized according to a hierarchical heading and subheading structure.

Titles and subtitles allow a clear and hierarchical organization of the content of each page of the book.

Objectives

  • Make it easier for the reader to understand and navigate by presenting content in a structured and logical manner

Implementation

  • Use HTML tags

    ,

    ,

    ,

    ,

    et
  • Each page must have at least one

  • Maintain a consistent hierarchy: a title of level

    must not be followed by a title of level

    .

Control

  • Check the source code of the epub HTML page:
    • The titles and subtitles must be in an tag from 1 to 6.
    • There must be at least one

      .

    • The order of the title levels must be hierarchical and coherent.

    Validation

    • Reported by ACE.
    • Needs to be human verified.

    Informations 

    • Steps concerned :
    • Tags :
    • Categorie : Code and structure
    • Rule origin : Opquast
    • Opquast reference : 4 227
    • Updated on September 18, 2024
    • references :