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word-spacing

The word-spacing CSS property sets the length of space between words and between tags.

Syntax

/* Keyword value */
word-spacing: normal;

/* <length> values */
word-spacing: 3px;
word-spacing: 0.3em;

/* <percentage> values */
word-spacing: 50%;
word-spacing: 200%;

/* Global values */
word-spacing: inherit;
word-spacing: initial;
word-spacing: unset;

Values

normal
The normal inter-word spacing, as defined by the current font and/or the browser.
<length>
Specifies extra spacing in addition to the intrinsic inter-word spacing defined by the font.
<percentage>
Specifies extra spacing as a percentage of the affected character’s advance width.

Examples

HTML

<div id="mozdiv1">Here are many words...</div>
<div id="mozdiv2">...and many more!</div>

CSS

#mozdiv1 {
  word-spacing: 15px;
}

#mozdiv2 {
  word-spacing: 5em;
} 

Accessibility concerns

A large positive or negative word-spacing value will make the sentences the styling is applied to unreadable. For text styled with a very large positive value, the words will be so far apart that it will no longer appear to be a sentence. For text styled with a large negative value, the words will overlap each other to the point where the the beginning and end of each word is unrecognizable.

Legible word-spacing must be determined on a case-by-case basis, as different font families have different character widths. There is no one value that can ensure all font families automatically maintain their legibility.

Formal definition

Initial value normal
Applies to all elements. It also applies to ::first-letter and ::first-line.
Inherited yes
Percentages refer to the width of the affected glyph
Computed value an optimum, minimum, and maximum value, each consisting of either an absolute length, a percentage, or the keyword normal
Animation type a length

Formal syntax

normal | <length-percentage>

where
<length-percentage> = <length> | <percentage>

Specifications

Specification Status Comment
CSS Text Module Level 3
The definition of 'word-spacing' in that specification.
Working Draft Replaces the previous values with a <spacing-limit> value that defines the same thing, plus the <percentage> value. Allows up to three values describing the optimum, minimum, and maximum value.
CSS Level 2 (Revision 1)
The definition of 'word-spacing' in that specification.
Recommendation No change.
CSS Level 1
The definition of 'word-spacing' in that specification.
Recommendation Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
word-spacing 1 12 1 6 3.5 1
<percentage> values No No 45 No No 6.1
SVG support 1 12 72 9 7 5.1
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
word-spacing 37 18 4 14 1 1.0
<percentage> values No No 45 No 6.1 No
SVG support ≤37 18 No 14 5.1 1.0

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/word-spacing