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CSS counter-increment Property

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Example

A way to number sections and sub-sections with "Section 1", "1.1", "1.2", etc.:

body
{
counter-reset:section;
}

h1
{
counter-reset:subsection;
}

h1:before
{
content:"Section " counter(section) ". ";
counter-increment:section;
}

h2:before
{
counter-increment:subsection;
content:counter(section) "." counter(subsection) " ";
}
 

Try it yourself »

Definition and Usage

The counter-increment property increments one or more counter values.

The counter-increment property is usually used together with the counter-reset property and the content property.

Default value: none
Inherited: no
Version: CSS2
JavaScript syntax: object.style.counterIncrement="subsection"

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The counter-increment property is supported in all major browsers.

Note: Internet Explorer 8 (and higher) supports the counter-increment property if a !DOCTYPE is specified.

Property Values

Value Description
none No counters will be incremented
id number The id defines which counter that should be incremented. The number sets how much the counter will increment on each occurrence of the selector. The default increment is 1. 0 or negative values, are allowed. If the id refers to a counter that has not been initialized by counter-reset, the default initial value is 0
inherit Specifies that the value of the counter-increment property should be inherited from the parent element

Related Pages

CSS reference: :before pseudo element

CSS reference: :after pseudo element

CSS reference: content property

CSS reference: counter-reset property

CSS Reference Complete CSS Reference

From http://www.w3schools.com (Copyright Refsnes Data)