Bullet types for <UL>
- None
 - Square
 - Circle
 -  Solid Disc (default)
  
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Number styles for <OL>
- decimal
 - decimal-leading-zero
 - lower-roman
 - upper-roman
 - lower-greek
 - lower-alpha
 - upper-alpha
 - hebrew
  
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The list-style property is specified as one, two, or three keywords in any order If list-style-type and list-style-image are both set, then list-style-type is used as a fallback if the image is unavailable. The property applies to <ul>,<ol>, and <li>, and can  all be set with one statement: list-style which is a shorthand for the following CSS properties:
    list-style-image none or a url to an image, default=none
    list-style-position which can be inside or outside, default is outside
   list-style-type which can be disc, circle, square for unordered lists and a large number of numerals in various languages are available, default is Latin ASCII numerals.
Examples:
list-style
Syntax
/* type */
list-style: square;
/* image */
list-style: url("../img/shape.png");
/* position */
list-style: inside;
/* type | position */
list-style: georgian inside;
/* type | image | position */
list-style: lower-roman url("../img/shape.png") outside;
Default is list-style: disc outside none;