# CSS tab-size Property

## Example

Set the tab-size of a <pre> element:

pre {-moz-tab-size: 16;} /* Code for Firefox */
pre {-o-tab-size: 16;} /* Code for Opera 10.6-12.1 */
pre {tab-size: 16;}
Try it yourself »

## Definition and Usage

The tab-size property specifies the length of the space used for the tab character.

In HTML, the tab character is usually displayed as a single space-character, except for some elements, like <textarea> and <pre>, and the result of the tab-size property will only be visible for these elements.

Default value: | 8
Inherited: | yes
Animatable: | no. Read about animatable
Version: | CSS3
JavaScript syntax: | object.style.tabSize="16" Try it

## Browser Support

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

Numbers followed by -moz- or -o- specify the first version that worked with a prefix.

Property |  |  |  |  |
--- | --- | --- | --- | --- | ---
tab-size | 21.0 | Not supported | 4.0 -moz- | 6.1 | 15.0 10.6 -o-

Note: No browser is currently supporting the value as a length unit.

## CSS Syntax

tab-size: number|length|initial|inherit;

## Property Values

Value | Description | Play it
--- | --- | ---
number | Default value 8. Specifies the number of space-characters that should be displayed for each tab-character | Play it »
length | Specifies the length of a tab-character. This property value is not supported in any of the major browsers |
initial | Sets this property to its default value. Read about initial | Play it »
inherit | Inherits this property from its parent element. Read about inherit |

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