font-smooth

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句法
形式定义
形式句法
范例
规范
浏览器兼容性
另请参阅
相关话题

非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

font-smooth CSS property controls the application of anti-aliasing when fonts are rendered.

句法

/* Keyword values */
font-smooth: auto;
font-smooth: never;
font-smooth: always;
/* <length> value */
font-smooth: 2em;

WebKit implements a similar property, but with different values: -webkit-font-smoothing . It only works on Mac OS X/macOS.

auto - Let the browser decide (Uses subpixel anti-aliasing when available; this is the default)
none - Turn font smoothing off; display text with jagged sharp edges.
antialiased - Smooth the font on the level of the pixel, as opposed to the subpixel. Switching from subpixel rendering to antialiasing for light text on dark backgrounds makes it look lighter.
subpixel-antialiased - On most non-retina displays, this will give the sharpest text.

Firefox implements a similar property, but with different values: -moz-osx-font-smoothing . It only works on Mac OS X/macOS.

auto - Allow the browser to select an optimization for font smoothing, typically grayscale .
grayscale - Render text with grayscale antialiasing, as opposed to the subpixel. Switching from subpixel rendering to antialiasing for light text on dark backgrounds makes it look lighter.

形式定义

初始值	`auto`
适用于	所有元素
继承	yes
计算值	如指定
动画类型	discrete

形式句法

auto | never | always | <absolute-size> | <length>where 
<absolute-size> = xx-small | x-small | small | medium | large | x-large | xx-large | xxx-large

范例

Basic usage example

The following example shows the Safari/Chromium and Firefox equivalents that turn on font-smoothing on macOS. In both cases the smoothed font should look slightly lighter in weight.

For those of you not on a macOS system, here is a screenshot (the live version appears later on):

HTML

<p>Without font smoothing</p>
<p class="smoothed">With font smoothing</p>

CSS

html {
  background-color: black;
  color: white;
  font-size: 3rem;
}
p {
  text-align: center;
}
.smoothed {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

结果

规范

Not part of any standard.

浏览器兼容性

The compatibility table in 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-smooth` 非标	Chrome 完整支持 5 Alternate Name 完整支持 5 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Edge 完整支持 79 Alternate Name 完整支持 79 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Firefox 完整支持 25 注意事项 Alternate Name 完整支持 25 注意事项 Alternate Name 注意事项 Only works on macOS. Alternate Name Uses the non-standard name: `-moz-osx-font-smoothing`	IE 不支持 No	Opera 完整支持 15 Alternate Name 完整支持 15 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Safari 完整支持 4 Alternate Name 完整支持 4 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	WebView Android 完整支持 ≤37 Alternate Name 完整支持 ≤37 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Chrome Android 完整支持 18 Alternate Name 完整支持 18 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Firefox Android 不支持 No	Opera Android 完整支持 14 Alternate Name 完整支持 14 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Safari iOS 完整支持 3.2 Alternate Name 完整支持 3.2 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`	Samsung Internet Android 完整支持 1.0 Alternate Name 完整支持 1.0 Alternate Name Alternate Name Uses the non-standard name: `-webkit-font-smoothing`

图例

完整支持
不支持
非标。预期跨浏览器支持较差。
见实现注意事项。
使用非标名称。

另请参阅

元数据

最后修改： Aug 4, 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