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The font-kerning CSS property controls the usage of the kerning information; that is, it controls how letters are spaced. The kerning information is stored in the font, and if the font is well-kerned, this feature allows spacing between characters to be very similar, whatever the characters are.

Example of font-kerning

Initial valueauto
Applies toall elements. It also applies to ::first-letter and ::first-line.
Computed valueas specified
Animation typediscrete
Canonical orderthe unique non-ambiguous order defined by the formal grammar


font-kerning: auto;
font-kerning: normal;
font-kerning: none;

/* Global values */
font-kerning: inherit;
font-kerning: initial;
font-kerning: unset;


This keyword defers to the browser regarding whether to use kerning. When the font size is small, font kerning may look strange and browsers will disable it. This is the default value.
This keyword requires kerning to be applied.
This keyword prevents the browser from using the kerning information stored in the font.

Formal syntax

auto | normal | none


p {
  font-kerning: none;


Specification Status Comment
CSS Fonts Module Level 3
The definition of 'font-kerning' in that specification.
Candidate Recommendation Initial definition

Browser Compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 32[1] (Yes) 34 (34)[2] 10[3] ? 7
Feature Android Edge Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? (Yes) 34.0 (34)[2] ? ? 7

[1] Requires prefix -webkit-font-kerning. First version supporting this property is not known.

[2] Experimental implementation was available since Gecko 24. It was governed by the preference layout.css.font-features.enabled defaulting to true on Nightly and Aurora only.

[3] OpenType layout features might be supported using font-feature-settings property, however individual font-kerning property is not supported.

Kerning Demo

HTML Content

<div id="kern"></div>
<div id="nokern"></div>
<textarea id="input">AV T. ij</textarea>

CSS Content

#nokern, #kern {
  font-size: 2rem;
  font-family: serif;
#nokern {
  font-kerning: none;
#kern {
  font-kerning: normal;

JS Content

var input  = document.getElementById('input'),
    kern   = document.getElementById('kern'),
    nokern = document.getElementById('nokern');
input.addEventListener('keyup', function() {
  kern.textContent = input.value; /* Update content */
  nokern.textContent = input.value;
kern.textContent = input.value; /* Initialize content */
nokern.textContent = input.value;

See also

Schlagwörter des Dokuments und Mitwirkende

 Zuletzt aktualisiert von: erikadoyle,