Joomla! content editor’s provide different types of lists to choose from when constructing your page. The most commonly used are ordered and unordered lists. Choosing what type of list to use, or to use a list at all, comes down to the content at hand and what is the most meaningful choice, for displaying the content of your document. Lists are commonly formatted as bullets or numbers when listing items.
An 'Unordered List', looks like this, in HTML:
<ul> <li>item 1</li> <li>item 2</li> <li>item 3</li> </ul>
and will look like this when outputted in the editor's WYSIWYG view.
While an 'Ordered List', looks like this in, HTML:
<ol> <li>item 1</li> <li>item 2</li> <li>item 3</li> </ol>
and again, will look like this, when outputted in the editor's WYSIWYG view.
You can do this, by selecting your text in the editing area and then select the 'Number List' button from the editor as seen below:
An 'Ordered list', places strong importance, on the order of items:
A little known secret, is that lists can have their own custom properties. This can be applied, simply by selecting and by right clicking on your list type. This can be used to define the starting number of your list or to change listing style or numbering type.
Here are a few examples
Unordered lists, are for lists of items, where the order is not of importance:
Different bulleted list properties can be applied by selecting and by right clicking on the list: