list-style 
list-style: square url() outside;

Shorthand to set all lists properties.

Lists | Markers CSS
::marker 
li::marker {content: "- "; font-size: 10px;}

To select and change markers.

Lists | Markers CSS
list-style-type 
list-style-type: square circle disc "string value";

To change the shape of markers of a list.

Lists | Markers CSS
list-style-position 
list-style-position: outside inside;

Set the position of the ::marker relative to it's list item.

Lists | Markers CSS