Web Design in a Nutshell, 3rd Edition

Unordered list syntax

This example shows the markup for a basic unordered list.

<ul><li>Unordered information</li>
        <li>Ordered information</li>
        <li>Terms and definitions</li></ul>

In HTML 4.01, the end tags for list items are optional, but in XHTML, all end tags are required. It is good practice to close all elements regardless of the version of HTML you are using.