[Jellby]

Originally Posted by Perkin

Doesn't have to be used for just chapters, I use it for footnotes.

<p><a id="return01"></a>Here’s a <a href="#footnote1">link</a> which jumps to the end footnote.</p>

and further on

<p><a id="footnote1"></a>A footnote is here.</p>
<p>When selecting here. <a href="#return01">RETURN</a></p>

And you don't have to use empty <a> elements, you can add the "id" to the <p>:

<p id="return01">Here’s a <a href="#footnote1">link</a> which jumps to the end footnote.</p>

<p id="footnote1">A footnote is here.</p>
<p>When selecting here. <a href="#return01">RETURN</a></p>