font-feature-settings

{{CSSRef}}

The font-feature-settings CSS property controls advanced typographic features in OpenType fonts.

{{InteractiveExample("CSS Demo: font-feature-settings")}}

font-feature-settings: normal;

font-feature-settings: "liga" 0;

font-feature-settings: "tnum";

font-feature-settings: "smcp", "zero";

<section id="default-example">
  <div id="example-element">
    <p>Difficult waffles</p>
    <table>
      <tr>
        <td><span class="tabular">0O</span></td>
      </tr>
      <tr>
        <td><span class="tabular">3.14</span></td>
      </tr>
      <tr>
        <td><span class="tabular">2.71</span></td>
      </tr>
    </table>
  </div>
</section>

@font-face {
  font-family: "Fira Sans";
  src:
    local("FiraSans-Regular"),
    url("/shared-assets/fonts/FiraSans-Regular.woff2") format("woff2");
  font-weight: normal;
  font-style: normal;
}

section {
  font-family: "Fira Sans", sans-serif;
  margin-top: 10px;
  font-size: 1.5em;
}

#example-element table {
  margin-left: auto;
  margin-right: auto;
}

.tabular {
  border: 1px solid;
}

Syntax

/* Use the default settings */
font-feature-settings: normal;

/* Set values for OpenType feature tags */
font-feature-settings: "smcp";
font-feature-settings: "smcp" on;
font-feature-settings: "swsh" 2;
font-feature-settings:
  "smcp",
  "swsh" 2;

/* Global values */
font-feature-settings: inherit;
font-feature-settings: initial;
font-feature-settings: revert;
font-feature-settings: revert-layer;
font-feature-settings: unset;

Whenever possible, Web authors should instead use the {{cssxref("font-variant")}} shorthand property or an associated longhand property such as {{cssxref("font-variant-ligatures")}} , {{cssxref("font-variant-caps")}} , {{cssxref("font-variant-east-asian")}} , {{cssxref("font-variant-alternates")}} , {{cssxref("font-variant-numeric")}} or {{cssxref("font-variant-position")}} .

These lead to more effective, predictable, understandable results than font-feature-settings, which is a low-level feature designed to handle special cases where no other way exists to enable or access an OpenType font feature. In particular, font-feature-settings shouldn’t be used to enable small caps.

Values

This property is specified as either the keyword normal or as a comma-separated list of <feature-tag-value> values. When rendering text, the list of OpenType <feature-tag-value> values are passed to the text layout engine to enable or disable font features.

normal
- : Indicates that text is laid out using default font settings. This is the default value.
<feature-tag-value>
- : Represents a space-separated tuple consisting of a tag name and an optional value.
  
  The tag name is always a {{cssxref("<string>")}} of four {{Glossary("ASCII")}} characters. If the tag name has more or fewer characters or if it contains characters outside the U+20 – U+7E code point range, the descriptor is invalid.
  
  The optional value can be a positive integer or the keyword on or off. The keywords on and off are synonyms for the values 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 features, the value turns the feature on or off.

Formal definition

{{cssinfo}}

Formal syntax

{{csssyntax}}

Examples

Enabling various font features

/* use small-cap alternate glyphs */
.small-caps {
  font-feature-settings: "smcp" on;
}

/* convert both upper and lowercase to small caps (affects punctuation also) */
.all-small-caps {
  font-feature-settings: "c2sc", "smcp";
}

/* use zeros with a slash through them to differentiate from "O" */
.nice-zero {
  font-feature-settings: "zero";
}

/* enable historical forms */
.historical {
  font-feature-settings: "hist";
}

/* disable common ligatures, usually on by default */
.no-ligatures {
  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 */
.fancy-style {
  font-family: Gabriola;
  font-feature-settings: "ss07";
}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

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