The @href attribute is used within the <ft:node> element to declare the location of the topic. It must be written as the path and filename of the HTML file containing the topic.
When no @href attribute is provided for the element, the @ft:title and @ft:originId attributes are mandatory.
The @href attribute is optional.
The following lines show an example of the @href element:
<?xml version="1.0" encoding="UTF-8"?>
<ft:map ...>
...
<ft:toc>
<ft:node originId="192fe" ft:title="Introduction" href="intro/introduction.html"
type="topic">
<ft:metas>
<ft:meta key="product">myProduct</ft:meta>
<ft:meta key="audience">beginner</ft:meta>
</ft:metas>
<ft:node href="front.html"/>
</ft:node>
<ft:node ft:title="Copyrights" href="copyrights.html"/>
...
</ft:toc>
</ft:map>