1、Information technology Digital publishing EPUB 3.0.1 Part 3:Content documentsTechnologies de linformation Publications numriques EPUB 3.0.1 Partie 3:Documents de contenuINTERNATIONAL STANDARDISO/IEC23736-3Reference numberISO/IEC 23736-3:2020(E)First edition2020-02 ISO/IEC 2020 ISO/IEC 23736-3:2020(E
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4、x:+41 22 749 09 47Email:copyrightiso.orgWebsite:www.iso.orgPublished in SwitzerlandForeword ISO(the International Organization for Standardization)and IEC(the International ElectrotechnicalCommission)form the specialized system for worldwide standardization.National bodies that are members of ISO or
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7、tives).Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Details of any patent rights identified during the development of the document will be in the Introductionand/orontheISOlis
8、tofpatentdeclarationsreceived(seewww.iso.org/patents)ortheIEClistofpatentdeclarationsreceived(seehttp:/patents.iec.ch).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.For an explanation of the voluntary nature of standards,the meaning of ISO
9、specific terms andexpressionsrelatedtoconformityassessment,aswellasinformationaboutISOsadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT),seewww.iso.org/iso/foreword.html.ThisdocumentwaspreparedbytheWorldWideWebConsortium(W3C)(asEPUBContentDocuments3.0.1)and drafte
10、d in accordance with its editorial rules.It was adopted,under the JTC 1 PAS procedure,by Joint Technical Committee ISO/IEC JTC 1,Information technology.AlistofallpartsintheISO/IEC23736seriescanbefoundontheISOwebsite.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody.
11、Acompletelistingofthesebodiescanbefoundatwww.iso.org/members.html.ISO/IEC 23736-3:2020(E)ISO/IEC 2020 All rights reservediii EPUB Content Documents 3.0.1Recommended Specification 26 June 2014THIS VERSIONhttp:/www.idpf.org/epub/301/spec/epub-contentdocs-20140626.htmlLATEST VERSIONhttp:/www.idpf.org/e
12、pub3/latest/contentdocsPREVIOUS VERSIONhttp:/www.idpf.org/epub/301/spec/epub-contentdocs-20140228.htmlA diff of changes from the previous version is also available.Please refer to the errata for this document,which may include some normative corrections.Copyright 2010-2013 International Digital Publ
13、ishing ForumAll rights reserved.This work is protected under Title 17 of the United States Code.Reproduction anddissemination of this work with changes is prohibited except with the written permission of the InternationalDigital Publishing Forum(IDPF).EPUB is a registered trademark of the Internatio
14、nal Digital Publishing Forum.EditorsMarkus Gylling,International Digital Publishing Forum(IDPF)William McCoy,International Digital Publishing Forum(IDPF)Elika J.Etemad,Invited ExpertMatt Garrish,Invited ExpertTABLE OF CONTENTS1.Overview1.1.Purpose and Scope1.2.Relationship to Other Specifications1.2
15、.1.Relationship to HTML51.2.2.Relationship to SVG1.2.3.Relationship to CSS1.2.4.Future Maintenance1.3.Terminology1.4.Typographic Conventions1.5.Conformance Statements1.6.Namespace prefix mappings2.EPUB Content Documents2.1.XHTML Content Documents2.1.1.Content Conformance2.1.2.Reading System Conforma
16、nce2.1.3.HTML5 Extensions2.1.3.1.Semantic MarkupISO/IEC 23736-3:2020(E)ISO/IEC 2020 All rights reserved12.1.3.1.1.Semantic Inflection2.1.3.1.1.1.Introduction2.1.3.1.1.2.The epub:type Attribute2.1.3.1.1.3.Vocabulary Association2.1.3.1.1.4.Processing Requirements2.1.3.1.2.Semantic Enrichment2.1.3.1.2.1.Introduction2.1.3.1.2.2.Content Conformance2.1.3.1.2.3.Processing Requirements2.1.3.2.SSML Attributes2.1.3.2.1.Overview2.1.3.2.2.The ssml:ph attribute2.1.3.2.3.The ssml:alphabet attribute2.1.3.3.Con
