@font-face

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句法
描述
形式句法
范例
规范
浏览器兼容性
另请参阅
相关话题

@font-face CSS at-rule specifies a custom font with which to display text; the font can be loaded from either a remote server or a locally-installed font on the user's own computer.

句法

@font-face {
  font-family: "Open Sans";
  src: url("/fonts/OpenSans-Regular-webfont.woff2") format("woff2"),
       url("/fonts/OpenSans-Regular-webfont.woff") format("woff");
}

Descriptors

font-display
font-family
font-stretch: A font-stretch value. Since Firefox 61 (and in other modern browsers) this also accepts two values to specify a range that is supported by a font-face, for example font-stretch: 50% 200%;
font-style: A font-style value. Since Firefox 61 (and in other modern browsers) this also accepts two values to specify a range that is supported by a font-face, for example font-style: oblique 20deg 50deg;
font-weight: A font-weight value. Since Firefox 61 (and in other modern browsers) this also accepts two values to specify a range that is supported by a font-face, for example font-weight: 100 400;
font-variant: A font-variant 值。
font-feature-settings
font-variation-settings
src
unicode-range

描述

若 local() function is provided, specifying a font name to look for on the user's computer, and the 用户代理 finds a match, that local font is used. Otherwise, the font resource specified using the url() function is downloaded and used.

By allowing authors to provide their own fonts, @font-face makes it possible to design content without being limited to the so-called "web-safe" fonts (that is, the fonts which are so common that they're considered to be universally available). The ability to specify the name of a locally-installed font to look for and use makes it possible to customize the font beyond the basics while making it possible to do so without relying on an Internet connection.

It's common to use both url() and local() together, so that the user's installed copy of the font is used if available, falling back to downloading a copy of the font if it's not found on the user's device.

@font-face at-rule may be used not only at the top level of a CSS, but also inside any CSS conditional-group at-rule .

Font MIME Types

Format	MIME type
TrueType	`font/ttf`
OpenType	`font/otf`
Web Open Font Format	`font/woff`
Web Open Font Format 2	`font/woff2`

注意事项

Web fonts are subject to the same domain restriction (font files must be on the same domain as the page using them), unless HTTP access controls are used to relax this restriction.


@font-face

cannot be declared within a CSS selector. For example, the following will not work:

.className {
  @font-face {
    font-family: MyHelvetica;
    src: local("Helvetica Neue Bold"),
         local("HelveticaNeue-Bold"),
         url(MgOpenModernaBold.ttf);
    font-weight: bold;
  }
}

形式句法

@font-face {
  [ font-family: <family-name>; ] ||
  [ src: <src>; ] ||
  [ unicode-range: <unicode-range>; ] ||
  [ font-variant: <font-variant>; ] ||
  [ font-feature-settings: <font-feature-settings>; ] ||
  [ font-variation-settings: <font-variation-settings>; ] ||
  [ font-stretch: <font-stretch>; ] ||
  [ font-weight: <font-weight>; ] ||
  [ font-style: <font-style>; ]
}where 
<family-name> = <string> | <custom-ident>+

范例

Specifying a downloadable font

This example simply specifies a downloadable font to use, applying it to the entire body of the document:

<html>
<head>
  <title>Web Font Sample</title>
  <style type="text/css" media="screen, print">
    @font-face {
      font-family: "Bitstream Vera Serif Bold";
      src: url("https://mdn.mozillademos.org/files/2468/VeraSeBd.ttf");
    }
    body { font-family: "Bitstream Vera Serif Bold", serif }
  </style>
</head>
<body>
  This is Bitstream Vera Serif Bold.
</body>
</html>

The output of this example code looks like so:

Specifying local font alternatives

In this example, the user's local copy of "Helvetica Neue Bold" is used; if the user does not have that font installed (two different names are tried), then the downloadable font named "MgOpenModernaBold.ttf" is used instead:

@font-face {
  font-family: MyHelvetica;
  src: local("Helvetica Neue Bold"),
       local("HelveticaNeue-Bold"),
       url(MgOpenModernaBold.ttf);
  font-weight: bold;
}

规范

规范	状态	注释
WOFF File Format 2.0 The definition of 'WOFF2 font format' in that specification.	推荐	Font format specification with new compression algorithm
WOFF File Format 1.0 The definition of 'WOFF font format' in that specification.	推荐	Font format specification
CSS Fonts Module Level 3 The definition of '@font-face' in that specification.	候选推荐	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`@font-face`	Chrome 完整支持 1	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 4	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 ≤37	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 2	Samsung Internet Android 完整支持 1.0
SVG fonts 弃用非标	Chrome 不支持 1 — 38	Edge 不支持 No	Firefox 不支持 No	IE 不支持 No	Opera 不支持 15 — 25	Safari 完整支持 3.2	WebView Android 不支持 ≤37 — 38	Chrome Android 不支持 18 — 38	Firefox Android 不支持 No	Opera Android 不支持 14 — 25	Safari iOS 完整支持 3	Samsung Internet Android 不支持 1.0 — 3.0
WOFF	Chrome 完整支持 6	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 9	Opera 完整支持 11.1	Safari 完整支持 5.1	WebView Android 完整支持 4.4	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 11.1	Safari iOS 完整支持 5	Samsung Internet Android 完整支持 1.0
WOFF 2	Chrome 完整支持 36	Edge 完整支持 14	Firefox 完整支持 39 完整支持 39 完整支持 35 Disabled Disabled ). To change preferences in Firefox, visit	IE 不支持 No	Opera 完整支持 23	Safari 完整支持 10 注意事项完整支持 10 注意事项注意事项 Supported only on macOS 10.12 (Sierra) and later.	WebView Android 完整支持 37	Chrome Android 完整支持 36	Firefox Android 完整支持 39 完整支持 39 完整支持 35 Disabled Disabled ). To change preferences in Firefox, visit	Opera Android 完整支持 24	Safari iOS 完整支持 10	Samsung Internet Android 完整支持 3.0
`font-display`	Chrome 完整支持 72	Edge 完整支持 79	Firefox 完整支持 58	IE 不支持 No	Opera 完整支持 60	Safari 完整支持 11.1	WebView Android 完整支持 72	Chrome Android 完整支持 72	Firefox Android 完整支持 58	Opera Android 完整支持 51	Safari iOS 完整支持 11.3	Samsung Internet Android 完整支持 11.0
`font-family`	Chrome 完整支持 4	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 6	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 2.2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 3.1	Samsung Internet Android 完整支持 1.0
`font-feature-settings`	Chrome 不支持 No	Edge 不支持 No	Firefox 完整支持 34 注意事项完整支持 34 注意事项注意事项 ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS. 完整支持 15 Prefixed 注意事项 Prefixed Implemented with the vendor prefix: -moz- 注意事项 From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See OpenType Font Feature support in Firefox 4 .	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 完整支持 34 注意事项完整支持 34 注意事项注意事项 ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS. 完整支持 15 Prefixed 注意事项 Prefixed Implemented with the vendor prefix: -moz- 注意事项 From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See OpenType Font Feature support in Firefox 4 .	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 不支持 No
`font-stretch`	Chrome 完整支持 62	Edge 完整支持 17	Firefox 完整支持 62	IE 不支持 No	Opera 完整支持 49	Safari 完整支持 10.1	WebView Android 完整支持 62	Chrome Android 完整支持 62	Firefox Android 完整支持 62	Opera Android 完整支持 41	Safari iOS 完整支持 10.3	Samsung Internet Android 完整支持 6.0
`font-style`	Chrome 完整支持 4	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 4	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 ≤37	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 2	Samsung Internet Android 完整支持 1.0
`font-variant`	Chrome 完整支持 4	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 4	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 ≤37	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 2	Samsung Internet Android 完整支持 1.0
`font-variation-settings`	Chrome 完整支持 62	Edge 完整支持 79	Firefox 完整支持 62 完整支持 62 不支持 60 — 62 Disabled Disabled ). To change preferences in Firefox, visit	IE 不支持 No	Opera 完整支持 49	Safari 不支持 No	WebView Android 完整支持 62	Chrome Android 完整支持 62	Firefox Android 完整支持 62 完整支持 62 不支持 60 — 62 Disabled Disabled ). To change preferences in Firefox, visit	Opera Android 完整支持 46	Safari iOS 不支持 No	Samsung Internet Android 完整支持 8.0
`font-weight`	Chrome 完整支持 4	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 4	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 ≤37	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 2	Samsung Internet Android 完整支持 1.0
`src`	Chrome 完整支持 4	Edge 完整支持 12	Firefox 完整支持 3.5	IE 完整支持 6	Opera 完整支持 10	Safari 完整支持 3.1	WebView Android 完整支持 2.2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 10.1	Safari iOS 完整支持 3.1	Samsung Internet Android 完整支持 1.0
`unicode-range`	Chrome 完整支持 1	Edge 完整支持 12	Firefox 完整支持 36	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 3.2	WebView Android 完整支持 ≤37	Chrome Android 完整支持 18	Firefox Android 完整支持 36	Opera Android 完整支持 14	Safari iOS 完整支持 3	Samsung Internet Android 完整支持 1.0

图例

完整支持
不支持
非标。预期跨浏览器支持较差。
弃用。不要用于新网站。
见实现注意事项。
用户必须明确启用此特征。
要求使用供应商前缀或不同名称。

另请参阅

元数据

最后修改： Sep 29, 2020

CSS
CSS 参考
CSS 字体
指南
1. OpenType font features guide
2. Variable fonts guide
At-Rules
1. @font-face
2. @font-feature-values
特性

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句法