More for reference:
When used with items within an unordered list, the list-style-type property accepts one of four values: disc, circle, square, or none. The browser marks the unordered list items with the corresponding specified dingbat. The default value is disc; browsers change that default depending on the nesting level of the list.
When used with items within an ordered list, the list-style-type property accepts one of six values: decimal, lower-roman, upper-roman, lower-alpha, upper-alpha, or none. These values format the item numbers as decimal values, lowercase Roman numerals, uppercase Roman numerals, lowercase letters, or uppercase letters, respectively. Most browsers will use decimal numbering schemes if you don’t set this property.
…The list-style property
The list-style property is the shorthand version for all the other list-style properties. It accepts any or all of the values allowed for the list-style-type, list-style-position, and list-style-image properties, in any order and with values appropriate for the type of list it is to affect. These are valid list-style properties:
LI {list-style: disc}
LI {list-style: lower-roman inside}
LI {list-style: url(https://www.kumquat.com/images/tiny-quat.gif)
square}
The first example creates list items that use a disc as the bullet image. The second causes numbered list items to use lowercase Roman numerals, drawn inside the list item’s block. In the last example, a square will be used as the bullet image if the referenced image is unavailable.
This can be found on the HTML Definitive Guide
https://www.web-developer-india.com/web/html/ch09_03.html
