word-break

The word-break CSS property sets whether line breaks appear wherever the text would otherwise overflow its content box.

Try it

Syntax

css
/* Keyword values */
word-break: normal;
word-break: break-all;
word-break: keep-all;
word-break: auto-phrase; /* experimental */
word-break: break-word; /* deprecated */

/* Global values */
word-break: inherit;
word-break: initial;
word-break: revert;
word-break: revert-layer;
word-break: unset;

The word-break property is specified as a single keyword chosen from the list of values below.

Values

normal

Use the default line break rule.

break-all

To prevent overflow, word breaks should be inserted between any two characters (excluding Chinese/Japanese/Korean text).

keep-all

Word breaks should not be used for Chinese/Japanese/Korean (CJK) text. Non-CJK text behavior is the same as for normal.

auto-phrase

Has the same effect as word-break: normal except that language-specific analysis is performed to improve word breaks by not placing them in the middle of natural phrases.

break-word

Has the same effect as overflow-wrap: anywhere combined with word-break: normal, regardless of the actual value of the overflow-wrap property.

Note: In contrast to word-break: break-word and overflow-wrap: break-word (see overflow-wrap), word-break: break-all will create a break at the exact place where text would otherwise overflow its container (even if putting an entire word on its own line would negate the need for a break).

The specification also lists an additional value, manual, which is not currently supported in any browsers. When implemented, manual will have the same effect as word-break: normal except that breaks won't be automatically inserted in Southeast Asian languages. This is needed because, in such languages, user agents frequently place breaks in suboptimal positions. manual will allow you to insert line breaks in optimal positions manually.

Formal definition

Initial valuenormal
Applies toall elements
Inheritedyes
Computed valueas specified
Animation typediscrete

Formal syntax

word-break = 
  normal      |
  keep-all    |
  break-all   |
  break-word

Examples

HTML

html
<p>1. <code>word-break: normal</code></p>
<p class="normal narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

<p>2. <code>word-break: break-all</code></p>
<p class="breakAll narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

<p>3. <code>word-break: keep-all</code></p>
<p class="keepAll narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

<p>4. <code>word-break: manual</code></p>
<p class="manual narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

<p>5. <code>word-break: auto-phrase</code></p>
<p class="autoPhrase narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

<p>6. <code>word-break: break-word</code></p>
<p class="breakWord narrow">
  This is a long and Honorificabilitudinitatibus califragilisticexpialidocious
  Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
  グレートブリテンおよび北アイルランド連合王国という言葉は本当に長い言葉
</p>

CSS

css
.narrow {
  padding: 10px;
  border: 1px solid;
  width: 500px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 1.5;
  letter-spacing: 1px;
}

.normal {
  word-break: normal;
}

.breakAll {
  word-break: break-all;
}

.keepAll {
  word-break: keep-all;
}

.manual {
  word-break: manual;
}

.autoPhrase {
  word-break: auto-phrase;
}

.breakWord {
  word-break: break-word;
}

Specifications

Specification
CSS Text Module Level 3
# word-break-property

Browser compatibility

BCD tables only load in the browser

See also