<div class="list-container">
<h1>Ordered list without styles</h1>
<ol>
<li>
One
<ol>
<li>One one</li>
</ol>
</li>
<li>
Two
<ol>
<li>Two one</li>
</ol>
</li>
<li>
Three
<ol>
<li>
Three one
<ol>
<li>Three one one</li>
</ol>
</li>
</ol>
</li>
</ol>
</div>
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.