CSS Cookbook, 2nd Edition

Problem

You want to change the default list style; for example, to change the bullet or numbering, as in Figure 5-2.

Figure 5-2. The list markers changed to lowercase Roman numerals

Solution

Use the list-style-type property to change the bullet or type of counter:

li { list-style-type: lower-roman; }

Discussion

The CSS 2.1 specification offers several styles for numbering a list, as shown in Table 5-1. Browsers typically vary the bullet style from one level of nesting to the next. To stop lists from presenting this traditional system of setting the list marker, change the value of list-style-type for each child list.

Table 5-1. Bullet styles

Style/valueDescriptionBrowser support

square

Usually a filled-in square, although the exact representation isn't defined.All major browsers

disc

Usually a filled-in circle, although the exact representation isn't defined.All major browsers

circle

Usually an unfilled circle, although the exact representation isn't defined.All major browsers

decimal

Starts with 1 and continues with 2, 3, 4, etc.All major browsers

decimal-leading-zero

Starts with 01 and continues with 02, 03, 04, etc. The number of leading zeros may equal the number of digits used in a list. For example, 0001 may be used for a 5,876-item list.All major browsers

lower-roman

Starts with lowercase roman numerals.All major browsers

upper-roman

Starts with uppercase roman numerals.All major browsers

lower-alpha

Starts with lowercase ASCII letters.All major browsers

upper-alpha

Starts with uppercase ASCII letters.All major browsers

lower-latin

Starts with lowercase ASCII letters.All major browsers

upper-latin

Starts with uppercase ASCII letters.All major browsers

lower-greek

Starts with classical Greek letters, starting with alpha and then beta, gamma, etc.Safari, Mozilla, Netscape 6+

hebrew

Starts counting with traditional Hebrew.Safari, Mozilla, Netscape 6+

hiragana

Starts counting with the Japanese hiragana system.Mozilla, Netscape 6+

katakana

Starts counting with the Japanese traditional katakana system.Mozilla, Netscape 6+

hiragana-iroha

Starts counting with the Japanese hiragana-iroha system.Mozilla, Netscape 6+

katakana-iroha

Starts counting with the Japanese katakana-iroha system.Mozilla, Netscape 6+

none

No marker is displayed.All major browsers

See Also

Recipe 5.6 for using custom images for list markers; Chapter 12 in Cascading Style Sheets: The Definitive Guide, Second Edition by Eric A. Meyer (O'Reilly Media).

Категории