Indicates an ordered list.
To insert items into an ordered list ol, use the li element. If you want to create an unordered list, then use the ul element.
<ol>
<li>Apple</li>
<li>Pear</li>
<li>Peach</li>
</ol> <ol style="list-style-type:upper-roman">
<li>Menu 1
<ol>
<li>SubMenu 1_1</li>
<li>SubMenu 1_2</li>
</ol>
</li>
<li>Menu 2
<ul style="list-style-type:decimal">
<li>SubMenu 2_1</li>
<li>SubMenu 2_2</li>
</ul>
</li>
<li>Menu 3</li>
</ol>