An _ordered list_ is used to describe an ordered collection of data. Browsers usually display an ordered list as a numbered list. Create an ordered list using the `<ol>` tag.
## Unordered lists
An _unordered list_ is used to describe an unordered collection of data. Browsers usually display an unordered list as a bulleted list. Create an unordered list using the `<ul>` tag.
## List items
The direct children of ordered and unordered lists must be list items. Each list item is wrapped in an `<li>` tag. A list item tag can contain [flow content](https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Content_categories#Flow_content).
Ordered and unordered lists can have different list item markers. The default numbering system in ordered list can be changed to lowercase or uppercase roman numerals, as well as lowercase or uppercase alphabetical. The start of the list can be changed from the default value of 1. In an unordered list, different list markers can be used like the disc, circle, square etc.
An ordered list can be used for a variety of functions and in a number of styles. Since changing the encompassing tag colors doesn't change the color of the bullets themselves, you can style them by first removing the traditional black bullets and inserting your own:
The content style adds a new bulletpoint while display and width style create a space between the bullet and the word. Regular font styles can apply here if you would like to make the bullet larger or bolder. Images can also be used as list item markers.