I think the way to fix ePub footnote links has been discussed somewhere else, and I don't usually bother to fix the footnotes myself because at the font size I use I don't usually have a problem activating them, but roughly:
The sort of footnote style that usually gives problems is where a tiny superscript is used as the link. You can use a much larger area for the link without changing the appearance of the text by seperating the footnote link from the footnote decoration.
e.g. if the footnote is done something like:
Code:
a.footnote { text-decoration: underline; }
<p>... blah blah something<sup><a class="footnote" id="fn1" href="#note1">1</a></sup> blah blah ...</p>
Use something like this instead:
Code:
a.footnote-link { text-decoration: none; }
sup.footnote-decoration {text-decoration: underline; }
<p>... blah blah <a class="footnote-link" id="fn1" href="#note1">something<sup class="footnote-decoration">1</sup></a> blah blah ...</p>
Edit2: Or a simpler way, if you don't mind the whole word being decorated as a link:
Code:
a.footnote { text-decoration: underline; }
<p>... blah blah <a class="footnote" id="fn1" href="#note1">something<sup>1</sup></a> blah blah ...</p>
Edit: Part of the issue with ePub links might be just a matter of getting used to them. I don't usually find it a problem to activate ePub links, which I think is mainly because I know I have to be very precise with my touch. I actually have more problems with accidentally activating links in KePubs, in some cases the hotspot for the link extends across a page break so tapping the bottom of the screen in a KePub can activate a link on the next page.