ISSUE-334: 'letter-spacing' and Indic

'letter-spacing' and Indic

Raised by:
Addison Phillips
Opened on:

8.2. Tracking: the ‘letter-spacing’ property

The section on "tracking" ('letter-spacing') may need to consider the effect on scripts such as Indic. The I18N WG asked for guidance from various Indic language contributors [1].

It was reported to use that 'letter-spacing' is not a native typographic style to these languages, however it is used in several languages, such as Hindi, for visual effect--if only rarely.

The guidance we received, which is consistent with our understanding, is that letter-spacing should "break" the joining "bar" (shirorekha) in those scripts that use a "bar" and that the separation should be on syllable boundaries. These boundaries do not necessarily correspond to Unicode's default grapheme cluster boundaries, making proper description more complicated.

[1] See threads:
(note that the thread order using the links in the mail archive sometimes go backwards in time and miss out some emails - best to visit each email in the by-month list)
Related Actions Items:
No related actions
Related emails:
  1. Daily github digest (WG INTERNAL review issues) (from on 2017-03-17)
  2. Daily github digest (WG INTERNAL review issues) (from on 2017-03-16)
  3. Re: [i18n-activity] i18n-ISSUE-334: 'letter-spacing' and Indic (from on 2016-09-23)
  4. Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2016-08-17)
  5. Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-10-23)
  6. [css-text] Outstanding CSS Text i18n issues (from on 2014-10-09)
  7. Outstanding CSS Text issues (from on 2014-10-09)
  8. Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-10-08)
  9. [minutes] Internationalization telecon 2014-09-18 (from on 2014-09-19)
  10. [minutes] Internationalization telecon 2014-09-11 (from on 2014-09-19)
  11. I18N-ACTION-344: Respond to css on issue-334 (from on 2014-09-11)
  12. [minutes] Internationalization telecon 2014-05-29 (from on 2014-05-29)
  13. Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-05-10)
  14. Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-05-08)
  15. Re: Fwd: Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-04-25)
  16. Fwd: Re: [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-04-25)
  17. [css-text] I18N-ISSUE-334: 'letter-spacing' and Indic (from on 2014-01-24)
  18. I18N-ISSUE-334: tracking and Indic [.prep-CSS3-text] (from on 2014-01-23)

Related notes:

WG comment. Discussion:

Addison Phillips, 23 Jan 2014, 18:17:19

Updated description to include link and section title.

Richard Ishida, 8 Oct 2014, 15:37:33

Richard Ishida, 17 Mar 2016, 12:32:33

Display change log ATOM feed

Addison Phillips <>, Chair, Richard Ishida <>, Bert Bos <>, Fuqiao Xue <>, Atsushi Shimono <>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <>.
$Id: 334.html,v 1.1 2023/07/19 12:02:02 carcone Exp $