quotes:
“ text ”

--- mdash:
&mdash

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<div class="tikz-center">
<script type="text/tikz">
  \begin{tikzpicture}
    \draw (0,0) circle (1in);
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</div>

<div style="margin-bottom: 10em;"></div>

<div class="theorem" id="thm-tag1">
Testing
</div>

<p>By <a href="#thm-tag1" class="ref"></a>,then </p>

<p>This is what the theorem says</p>


<div class="theorem" data-title="(numbers)" id="thm-tag2">
Testing
</div>

<p>By <a href="#thm-tag2" class="ref"></a>,then </p>

<div class="basicbox">
Any content ehre
</div>

<div class="definition" id="deg-tag1">
A definition here
</div>

<p>By <a href="#def-tag1" class="ref"></a>,then </p>

<div class="definition" data-title="(test)">
A definition here
</div>

<div class="example">
A example here
</div>

<div class="lemma">
A lemma here
</div>

<div class="result">
A result here
</div>

<div class="example">
A example here
</div>