`font-variation-settings` CSS at-rule descriptor

Baseline Widely available

This feature is well established and works across many devices and browser versions. It's been available across browsers since September 2018.

The font-variation-settings CSS descriptor allows authors to specify low-level OpenType or TrueType font variations in the @font-face at-rule. The values for this descriptor are the same as the font-variation-settings property, except for the global keyword values.

Since this descriptor sets variation values on the font object in the @font-face at-rule and not on an entire element, only some glyphs in an element may be rendered using this descriptor.

Syntax

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

/* Set values for OpenType axis names */
font-variation-settings: "xhgt" 0.7;

Values

normal: Text is laid out using default settings.
<string> <number>: When rendering text, the list of OpenType axis names is passed to the text layout engine to enable or disable font features. Each setting is always a <string> of 4 ASCII characters, followed by a <number> indicating the axis value. If the <string> has more or fewer characters or contains characters outside the U+20 - U+7E code point range, the whole property is invalid. The <number> can be fractional or negative.

Formal definition

Formal syntax

Examples

Setting font weight and stretch in a @font-face rule

@font-face {
  font-family: "OpenTypeFont";
  src: url("open_type_font.woff2") format("woff2");
  font-weight: normal;
  font-style: normal;
  font-variation-settings:
    "wght" 400,
    "wdth" 300;
}

Specifications

Specification
CSS Fonts Module Level 4 # font-rend-desc

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`font-variation-settings`	140	140	62	124	No	140	62	92	No	30.0	140	No