counter-increment property - CSS Reference

counter-increment property CSS Reference

Definition and Usage

The counter-increment CSS property is used to increase the value of CSS Counters by a given value. The counter's value can be reset using the counter-reset CSS property.

Initial none
Applies to all elements
Inherited no
Media all
Computed Value as specified
Animatable no
Canonical order the unique non-ambiguous order defined by the formal grammar

Syntax

Formal syntax: [<user-ident> <integer>?]+ | none

counter-increment: counter-name        /* Increment counter-name by 1 */
counter-increment: counter-name -1     /* Decrement counter-name by 1 */
counter-increment: counter1 counter2 -4 /* Increment counter1 by 1, and decrement counter2 by 4 */
counter-increment: none                /* Do not increment/decrement anything: used to hide less specific values */
counter-increment: inherit

Values

<user-ident>: The name of the counter to increment.
<integer>: The value to add to the counter. Defaults to 1 if not given.
none: No counter must be incremented. This is used as the default value, or to cancel an increment in more specific rules.

You may specify as many counters to increment as you want, each separated by a space.

Examples

h1 {
  counter-increment: chapter section 2 page;
  /* Increases the value of the chapter and page counters by 1
     and the section counter by 2. */
}