<ul>
<li>A list item</li>
<li>Another list item</li>
<li>A further list item</li>
</ul>

Will be displayed something like this:

• A list item
• Another list item
• A further list item

<ol>
<li>First list item</li>
<li>Second list item</li>
<li>Third list item</li>
</ol>

Will be displayed something like this:

1. First list item
2. Second list item
3. Third list item