这个规范，EPUB Content Documents 3.0，定义了在EPUB上下文中使用的HTML5、SVG和CSS的配置文件？出版物。 本规范是组成EPUB 3的一系列相关规范之一，EPUB 3是基于XML和Web标准的数字出版物交换和传递格式的第三次主要修订。它旨在与构成EPUB 3的其他规范一起阅读和理解: EPUB 3概述[EPUB3Overview]，它提供了EPUB和 EPUB 3文档其余部分的路线图。应该先看概述。 EPUB Publications 3.0[Publications30]，它定义了出版物级语义和 EPUB出版物的总体一致性要求。 EPUB Open Container Format(OCF)3.0[OCF3]，它定义了文件格式和处理 用于将一组相关资源封装到单文件（ZIP）EPUB容器中的模型。 EPUB Media Overlays 3.0[MediaOverlays30]，它定义了 文本和音频的同步。 本规范取代开放发布结构(OPS)2.0.1[OPS2]。有关本规范与其前身之间差异的信息，请参考【EPUB3Changes】。

This specification, EPUB Content Documents 3.0, defines profiles of HTML5, SVG, and CSS for use in the context of EPUB？ Publications. This specification is one of a family of related specifications that compose EPUB 3, the third major revision of an interchange and delivery format for digital publications based on XML and Web Standards. It is meant to be read and understood in concert with the other specifications that make up EPUB 3:

• The EPUB 3 Overview [EPUB3Overview], which provides an informative overview of EPUB and a
• roadmap to the rest of the EPUB 3 documents. The Overview should be read first.
• EPUB Publications 3.0 [Publications30], which defines publication-level semantics and
• overarching conformance requirements for EPUB Publications.
• EPUB Open Container Format (OCF) 3.0 [OCF3], which defines a file format and processing
• model for encapsulating a set of related resources into a single-file (ZIP) EPUB Container.
• EPUB Media Overlays 3.0 [MediaOverlays30], which defines a format and a processing model for
• synchronization of text and audio.

This specification supersedes Open Publication Structure (OPS) 2.0.1 [OPS2]. Refer to [EPUB3Changes] for information on differences between this specification and its predecessor.