textual — setting this value indicates that the publication is screen-reader
friendly (i.e., all the content is available for text-to-speech rendering by an assistive
technology). EPUB creators can set this value for EPUB publications that conform to [[WCAG2]] Level A or higher, for example, as there must be
- textual alternatives for non-text content to meet these thresholds.auditory — setting this value indicates that pre-recorded audio is available
for the publication. EPUB creators can set this value for EPUB publications that provide media
overlays for all the content.[[wcag2]] Success Criterion 1.1.1 requires that text - equivalents be provided for all non-text content to meet Level A. In some regions (e.g., Asia), - it is not uncommon to find images of individual text characters, despite the availability of - Unicode character equivalents. This practice occurs for various reasons, such as ease of - translation of older documents and for compatibility across Level A. + In some regions (e.g., Asia), it is not uncommon to find images of individual text characters, + despite the availability of Unicode character equivalents. This practice occurs for various + reasons, such as ease of translation of older documents and for compatibility across reading systems. The use of images in most instances leads to the text not being accessible to non-visual users, however.
@@ -1609,9 +1609,9 @@The use of Unicode characters for all text content avoids this problem, allowing content to successfully meet the minimum requirement for Level A.
-For compliance with Level AA, EPUB creators are directed to Success Criterion 1.4.5 which further restricts the use of images of text to only a set - of essential cases.
+For compliance with Level AA, EPUB creators are directed to Success Criterion 1.4.5 which further restricts the use + of images of text to only a set of essential cases.
diff --git a/epub33/a11y/index.html b/epub33/a11y/index.html index 5b4336ba7..df0091ffe 100644 --- a/epub33/a11y/index.html +++ b/epub33/a11y/index.html @@ -474,13 +474,13 @@MUST, for whichever version of WCAG 2 selected, meet the requirements - of Level A, but it is strongly recommended that it meet the requirements of Level - AA.
+ of Level A, but it is strongly recommended that it meet + the requirements of Level AA.Although conforming at level AAA is not required by this specification, EPUB creators are - encouraged to follow the practices detailed in AAA success criteria when producing - accessible EPUB publications.
+Although conforming at level AAA is not required by + this specification, EPUB + creators are encouraged to follow the practices detailed in AAA success + criteria when producing accessible EPUB publications.