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The word-spacing CSS property specifies the spacing behavior between tags and words.

/* 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;

Initial valuenormal
Applies toall elements. It also applies to ::first-letter and ::first-line.
Percentagesrefer to the width of the affected glyph
Computed valuean optimum, minimum, and maximum value, each consisting of either an absolute length, a percentage, or the keyword normal
Animation typea length
Canonical orderthe unique non-ambiguous order defined by the formal grammar



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

Formal syntax

normal | <length-percentage>

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



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


#mozdiv1 {
  word-spacing: 15px;

#mozdiv2 {
  word-spacing: 5em;


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 Transitions
The definition of 'word-spacing' in that specification.
Working Draft Defines word-spacing as animatable.
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 compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 (Yes) 1.0 (1.7 or earlier) 6.0 3.5 1.0 (85)
Percentages No support ? 45.0 (45.0) No support No support ?
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) No support ? ? ?
Percentages ? ? 45.0 (45.0) ? ? ?