The label for each link describes its function or the nature of the content it points to.
A link must specify its target, such as another paragraph within the ebook, a URL, an external resource or a JavaScript animation.
Objectives
Allow to accurately identify the nature of the link and avoid wrong actions.
Allow screen readers to specify explicit target
Improve accessibility of content to readers with disabilities.
Implementation
Unambiguously indicate the content of the target page of the link, the link function or its behavior, case in the link label (portion of text located between the and tags or in the textual alternative of the image placed between these tags, possibly combined with text libellet).
Control
In the source code of each text link or image link
Please make sure that the link label explicitly indicates the nature or function of the intended content, or the specific function of the link;
Control, in the case of image links, that the alt attribute of the image plays this role.