line-break

The line-break CSS property sets how to break lines of Chinese, Japanese, or Korean (CJK) text when working with punctuation and symbols.

/* Keyword values */
line-break: auto;
line-break: loose;
line-break: normal;
line-break: strict;
line-break: anywhere;

/* Global values */
line-break: inherit;
line-break: initial;
line-break: unset;

Syntax

Values

auto
Break text using the default line break rule.
loose
Break text using the least restrictive line break rule. Typically used for short lines, such as in newspapers.
normal
Break text using the most common line break rule.
strict
Break text using the most stringent line break rule.
anywhere

There is a soft wrap opportunity around every typographic character unit, including around any punctuation character or preserved white spaces, or in the middle of words, disregarding any prohibition against line breaks, even those introduced by characters with the GL, WJ, or ZWJ character class or mandated by the word-break property. The different wrapping opportunities must not be prioritized. Hyphenation is not applied.

Formal definition

Initial valueauto
Applies toall elements
Inheritedyes
Computed valueas specified
Animation typediscrete

Formal syntax

auto | loose | normal | strict | anywhere

Examples

Setting text wrapping

See whether the text is wrapped before "々", "ぁ" and "。".

HTML

<div lang="ja">
  <p class="wrapbox auto">auto:<br>そこは暖ぎãģとりで木々がčŧã„ãĻいた。<br>ããŽæ™¯č‰˛ãĢ、įžŽã—いãĒぁと思わずつãļやいた。</p>
  <p class="wrapbox loose">loose:<br>そこは暖ぎãģとりで木々がčŧã„ãĻいた。<br>ããŽæ™¯č‰˛ãĢ、įžŽã—いãĒぁと思わずつãļやいた。</p>
  <p class="wrapbox normal">normal:<br>そこは暖ぎãģとりで木々がčŧã„ãĻいた。<br>ããŽæ™¯č‰˛ãĢ、įžŽã—いãĒぁと思わずつãļやいた。</p>
  <p class="wrapbox strict">strict:<br>そこは暖ぎãģとりで木々がčŧã„ãĻいた。<br>ããŽæ™¯č‰˛ãĢ、įžŽã—いãĒぁと思わずつãļやいた。</p>
  <p class="wrapbox anywhere">anywhere:<br>そこは暖ぎãģとりで木々がčŧã„ãĻいた。<br>ããŽæ™¯č‰˛ãĢ、įžŽã—いãĒぁと思わずつãļやいた。</p>
</div>

CSS

.wrapbox { width: 10em; margin: 0.5em; white-space: normal; vertical-align: top; display: inline-block; }
.auto { line-break: auto; }
.loose { line-break: loose; }
.normal { line-break: normal; }
.strict { line-break: strict; }
.anywhere { line-break: anywhere; }

Result

Specifications

Specification Status Comment
CSS Text Module Level 3
The definition of 'line-break' in that specification.
Working Draft Initial definition

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
line-breakChrome Full support 58
Full support 58
Full support 1
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Edge Full support 14Firefox Full support 69IE Full support 5.5
Full support 5.5
Full support 8
Prefixed
Prefixed Implemented with the vendor prefix: -ms-
Opera Full support 45
Full support 45
Full support 15
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari Full support 3
Prefixed
Full support 3
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
No support 2 — 3
Prefixed
Prefixed Implemented with the vendor prefix: -khtml-
WebView Android Full support 58
Full support 58
Full support ≤37
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Chrome Android Full support 58
Full support 58
Full support 18
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox Android No support NoOpera Android Full support 43
Full support 43
Full support 14
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari iOS Full support 1
Prefixed
Full support 1
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Samsung Internet Android Full support 7.0
Full support 7.0
Full support 1.0
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-

Legend

Full support
Full support
No support
No support
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.