<h2 id="toc1">Part</h2>

<h3 id="toc2">Chapter <a href="#fn1" class="footnote" id="fn_back1">[1]</a></h3>

<h4 id="toc3">Section <a href="#fn2" class="footnote" id="fn_back2">[2]</a></h4>

<h5 id="toc4">Subsection <a href="#fn3" class="footnote" id="fn_back3">[3]</a></h5>

<h6>Sub-sub-section <a href="#fn4" class="footnote" id="fn_back4">[4]</a></h6>


<p class="fnline"><a class="footnotebody" href="#fn_back1" id="fn1">[1]</a> first
</p>

<p class="fnline"><a class="footnotebody" href="#fn_back2" id="fn2">[2]</a> second
</p>

<p class="fnline"><a class="footnotebody" href="#fn_back3" id="fn3">[3]</a> third
</p>

<p class="fnline"><a class="footnotebody" href="#fn_back4" id="fn4">[4]</a> fourth
</p>