nested list - Geonovum/respec GitHub Wiki
The algorithm class on <ol>
elements is used to provide more appropriate styling for deeply-nested ordered lists that are used in complex algorithm procedures.
<ol class='algorithm'>
<li>Mark A</li>
<li>Mark B</li>
<ol>
<li>Mark B.1</li>
<li>Mark B.2</li>
<li>Mark B.3</li>
</ol>
<li>Mark C</li>
</ol>