Writing modes and CJK line breaking
type: TechArticle
description: Vertical text (Japanese, Traditional Chinese, Mongolian) needs CSS writing-mode. Chinese, Japanese, Korean, and Thai also need explicit line-break and word-break rules so wrapping respects script-specific conventions.
language: en
is part of: Web Specification Studio
author: Web Specification Studio
publisher: Web Specification Studio
license: https://creativecommons.org/licenses/by/4.0/
date modified: 2026-05-29T18:54:03.000Z
citation: CSS Writing Modes Level 3
  type: CreativeWork
  publisher: W3C
citation: CSS Text Module Level 3 — Line Breaking and Word Boundaries
  type: CreativeWork
  publisher: W3C
citation: W3C i18n — Approaches to line breaking
  type: CreativeWork
  publisher: W3C
citation: MDN — writing-mode
  type: CreativeWork
  publisher: MDN

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