The word-break
CSS property is used to specify whether to break lines within words.
Initial value | normal |
---|---|
Applies to | all elements |
Inherited | yes |
Media | visual |
Computed value | as specified |
Animation type | discrete |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
/* Keyword values */ word-break: normal; word-break: break-all; word-break: keep-all; /* Global values */ word-break: inherit; word-break: initial; word-break: unset;
normal
break-all
keep-all
normal
.normal | break-all | keep-all
<p>1. <code>word-break: normal</code></p> <p class="normal narrow"> This is a long and Supercalifragilisticexpialidocious sentence. 次の単語グレートブリテンおよび北アイルランド連合王国で本当に大きな言葉 </p> <p>2. <code>word-break: break-all</code></p> <p class="breakAll narrow"> This is a long and Supercalifragilisticexpialidocious sentence. 次の単語グレートブリテンおよび北アイルランド連合王国で本当に大きな言葉 </p> <p>3. <code>word-break: keep-all</code></p> <p class="keep narrow"> This is a long and Supercalifragilisticexpialidocious sentence. 次の単語グレートブリテンおよび北アイルランド連合王国で本当に大きな言葉</p>
.narrow { padding: 5px; border: 1px solid; width: 8em; } .normal { word-break: normal; } .breakAll { word-break: break-all; } .keep { word-break: keep-all; }
Specification | Status | Comment |
---|---|---|
CSS Text Level 3 The definition of 'word-break' in that specification. | Working Draft | Initial definition |
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 1.0 | (Yes) | 15.0 (15.0) | 5.5[1] | 15 | (Yes) |
keep-all | 44 | ? | 15.0 (15.0) | 5.5 | 31 | 9 |
Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | (Yes) | 18.0 | (Yes) | 15.0 (15.0) | ? | No support | ? |
keep-all | No support[2] | No support[2] | ? | 15.0 (15.0) | ? | No support | 9 |
[1] IE8 introduced -ms-word-break
as a synonym for word-break
. Don't use the -ms-
prefix.
[2] See WebKit bug 123782.
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https://developer.mozilla.org/en-US/docs/Web/CSS/word-break