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CSS3 tab-size

The css3-tabsize plugin is a jQuery plugin for customizing the width of the tab character. Only effective when used within a block element with a CSS white-space property of “pre” or “pre-wrap”.

Last updated on : 2026-02-09

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 18

79 - 144

2 - 3

4 - 52

53 - 150

4 - 20

21 - 41

42 - 147

3.2 - 6

6.1 - 13

13.1 - 26.3

9.5 - 10

10.6 - 28

29 - 125

Fully Supported

Partially

No Support

Formal Definition

Inherited

yes

Applies to

block containers

Initial value

Animation type

a length

Computed value

the specified integer or an absolute length

Specifications

CSS Text Module Level 3 # tab-size-property

Syntax

/* <integer> values */
 tab-size: 4;
 tab-size: 0;
 /* <length> values */
 tab-size: 10px;
 tab-size: 2em;
 /* Global values */
 tab-size: inherit;
 tab-size: initial;
 tab-size: revert;
 tab-size: unset;

Browser Compatibility

CSS3 tab-size on IE is not supported on any IE versions.

CSS3 tab-size on Edge is fully supported on 79-144, and not supported on 12-18 Edge versions.

CSS3 tab-size on Firefox is fully supported on 53-150, partially supported on 4-52, and not supported on 2-3 Firefox versions.

CSS3 tab-size on Chrome is fully supported on 42-147, partially supported on 21-41, and not supported on 4-20 Chrome versions.

CSS3 tab-size on Safari is fully supported on 13.1-26.3, partially supported on 6.1-13, and not supported on 3.2-6 Safari versions.

CSS3 tab-size on Opera is fully supported on 29-125, partially supported on 10.6-28, and not supported on 9.5-10 Opera versions.

CSS3 tab-size on Safari on iOS is fully supported on 13.4-26.3, partially supported on 7-13.3, and not supported on 3.2-6 Safari on iOS versions.

CSS3 tab-size on Android Browser is fully supported on 97-144, partially supported on 4.4-4.4, and not supported on 2.3-4 Android Browser versions.

CSS3 tab-size on Opera Mobile is fully supported on 64-80, partially supported on 11.5-12, and not supported on 10-10 Opera Mobile versions.

CSS3 tab-size on Chrome for Android is fully supported on all Chrome for Android versions.

CSS3 tab-size on Firefox for Android is fully supported on all Firefox for Android versions.

CSS3 tab-size on Samsung Internet is fully supported on all Samsung Internet versions.

Browser Support for CSS3 tab-size

CSS3 tab-size on Chrome

CSS3 tab-size on Safari

CSS3 tab-size on Firefox

CSS3 tab-size on Internet Explorer

CSS3 tab-size on Opera

CSS3 tab-size on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:CSS3 tab-size shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.