font-feature-settings property CSS Reference

Definition and Usage

The font-feature-settings CSS property allows control over advanced typographic features in OpenType fonts.

Note: Whenever possible, Web authors should use the font-variant property. This property has been designed to handle special cases where no other way to enable or access an OpenType font feature does exists.

In particular, this CSS property shouldn't be used to enable small caps.

  • Initial normal
  • Applies to all elements
  • Inherited yes
  • Media visual
  • Computed Value as specified
  • Animatable no
  • Canonical order the unique non-ambiguous order defined by the formal grammar


Formal syntax: normal | <feature-tag-value>#
font-feature-settings: normal
font-feature-settings: "smcp"
font-feature-settings: "smcp" on
font-feature-settings: "swsh" 2
font-feature-settings: "smcp", "swsh" 2
font-feature-settings: inherit


Text is laid out using default settings.
When rendering text, the list of OpenType feature tag value is passed to the text layout engine to enable or disable font features. The tag is always a <string> of 4 ASCII characters. If it has more or less characters or contains characters outside the U+20 - U+7E codepoint range, the whole property is invalid. The value is an positive integer. The two keywords on and off are synonyms for 1 and 0 respectively. If no value is set, the default is 1. For non-Boolean OpenType features (e.g. stylistic alternates), the value implies a particular glyph to be selected; for Boolean values, it is a switch.


/* use small-cap alternate glyphs */
.smallcaps { font-feature-settings: "smcp" on; }
/* convert both upper and lowercase to small caps (affects punctuation also) */
.allsmallcaps { font-feature-settings: "c2sc", "smcp"; }
/* enable historical forms */
.hist { font-feature-settings: "hist"; }
/* disable common ligatures, usually on by default */
.noligs { font-feature-settings: "liga" 0; }
/* enable tabular (monospaced) figures */
td.tabular { font-feature-settings: "tnum"; }
/* enable automatic fractions */
.fractions { font-feature-settings: "frac"; }
/* use the second available swash character */
.swash { font-feature-settings: "swsh" 2; }
/* enable stylistic set 7 */
.fancystyle {
  font-family: Gabriola; /* available on Windows 7, and on Mac OS */
  font-feature-settings: "ss07";


Desktop browsers

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 16.0 -webkit 4.0 (2.0)-moz 10.0 Not supported Not supported

Mobile browsers

Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support NA NA NA NA NA

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