<p>Horizontal rules:</p>

<hr />

<hr />

<hr />

<hr />

<hr />

<p>Not horizontal rules (testing for a bug in 1.0.1j):</p>

<p>+++</p>

<p>,,,</p>

<p>===</p>

<p>???</p>

<p>AAA</p>

<p>jjj</p>

<p>j j j</p>

<p>n n n</p>