CSS counter-increment Property

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 {
    counter-increment: section;
    content: "Section " counter(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
Animatable:	no. Read about animatable
Version:	CSS2
JavaScript syntax:	object.style.counterIncrement = "subsection"; Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
counter-increment	4.0	8.0	2.0	3.1	9.6

Note: IE8 supports the counter-increment property only if a !DOCTYPE is specified.

CSS Syntax

counter-increment: none|id|initial|inherit;

Property Values

Value	Description
none	Default value. 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
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit