About Lesson
The HTML <ol> tag defines an ordered list. An ordered list can be numerical or alphabetical.
Ordered HTML List
An ordered list starts with the <ol> tag. Each list item starts with the <li> tag.
The list items will be marked with numbers by default:
Example
<ol>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Ordered HTML List – The Type Attribute
The type attribute of the <ol> tag, defines the type of the list item marker:
| Type | Description |
|---|---|
| type=”1″ | The list items will be numbered with numbers (default) |
| type=”A” | The list items will be numbered with uppercase letters |
| type=”a” | The list items will be numbered with lowercase letters |
| type=”I” | The list items will be numbered with uppercase roman numbers |
| type=”i” | The list items will be numbered with lowercase roman numbers |
Numbers:
<ol type=”1″>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Uppercase Letters:
<ol type=”A”>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Lowercase Letters:
<ol type=”a”>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Uppercase Roman Numbers:
<ol type=”I”>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Lowercase Roman Numbers:
<ol type=”i”>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Control List Counting
By default, an ordered list will start counting from 1. If you want to start counting from a specified number, you can use the start attribute:
Example
<ol start=”50″>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Nested HTML Lists
Lists can be nested (list inside list):
Example
<ol>
<li>Coffee</li>
<li>Tea
<ol>
<li>Black tea</li>
<li>Green tea</li>
</ol>
</li>
<li>Milk</li>
</ol>
Note: A list item (<li>) can contain a new list, and other HTML elements, like images and links, etc.
Chapter Summary
- Use the HTML
<ol>element to define an ordered list - Use the HTML
typeattribute to define the numbering type - Use the HTML
<li>element to define a list item - Lists can be nested
- List items can contain other HTML elements
