Adds support for <number> css value type to the CSS property tab-size, which determines the tab size used to render preserved tab characters. 'tab-size' accepts an <integer> or a <number> as its value type, and represents the measure as a real-number multiple of the space character’s advance width, in addition to its integer multiple.


Editor's draft

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 77
  • Chrome for Android release 77
  • Android WebView release 77

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • Shipped/Shipping
  • No signals


Intent to Prototype url

Intent to Prototype thread

Last updated on 2020-12-21