font-variant-ligatures - CSS(层叠样式表) 编辑

font-variant-ligatures 属性控制着其所应用元素文本的 ligatures 与 contextual forms 。 会使文字最终的表现形式更加统一。

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

Syntax

/* Keyword values */
font-variant-ligatures: normal;
font-variant-ligatures: none;
font-variant-ligatures: common-ligatures;           /* <common-lig-values> */
font-variant-ligatures: no-common-ligatures;        /* <common-lig-values> */
font-variant-ligatures: discretionary-ligatures;    /* <discretionary-lig-values> */
font-variant-ligatures: no-discretionary-ligatures; /* <discretionary-lig-values> */
font-variant-ligatures: historical-ligatures;       /* <historical-lig-values> */
font-variant-ligatures: no-historical-ligatures;    /* <historical-lig-values> */
font-variant-ligatures: contextual;                 /* <contextual-alt-values> */
font-variant-ligatures: no-contextual;              /* <contextual-alt-values> */

/* Global values */
font-variant-ligatures: inherit;
font-variant-ligatures: initial;
font-variant-ligatures: unset;

font-variant-ligatures取值为下列关键字之一。

Values

normal
默认值,表示在渲染时会使用常用的连字,连字的效果取决于字体,语言和脚本。
none
不使用任何连字,包括常规的形式
<common-lig-values>
These values control the most common ligatures, like for fi, ffi, th or similar. They correspond to the OpenType values liga and clig. Two values are possible:
  • common-ligatures activating these ligatures. Note that the keyword normal activates these ligatures.
  • no-common-ligatures deactivating these ligatures.
<discretionary-lig-values>
These values control specific ligatures, specific to the font and defined by the type designer. They correspond to the OpenType values dlig. Two values are possible:
  • discretionary-ligatures activating these ligatures.
  • no-discretionary-ligatures deactivating the ligatures. Note that the keyword normal usually deactivates these ligatures.
<historical-lig-values>
These values control the ligatures used historically, in old books, like the German tz digraph being displayed as ꜩ. They correspond to the OpenType values hlig. Two values are possible:
  • historical-ligatures activating these ligatures.
  • no-historical-ligatures deactivating the ligatures. Note that the keyword normal usually deactivates these ligatures.
<contextual-alt-values>
These values control whether letters adapt to their context—that is, whether they adapt to the surrounding letters. These values correspond to the OpenType values calt. Two values are possible:
  • contextual specifies that the contextual alternates are to be used. Note that the keyword normal usually activates these ligatures too.
  • no-contextual prevents their use.

Formal definition

初始值normal
适用元素all elements. It also applies to ::first-letter and ::first-line.
是否是继承属性yes
计算值as specified
Animation typediscrete

Formal syntax

normal | none | [ <common-lig-values> || <discretionary-lig-values> || <historical-lig-values> || <contextual-alt-values> ]

where
<common-lig-values> = [ common-ligatures | no-common-ligatures ]
<discretionary-lig-values> = [ discretionary-ligatures | no-discretionary-ligatures ]
<historical-lig-values> = [ historical-ligatures | no-historical-ligatures ]
<contextual-alt-values> = [ contextual | no-contextual ]

Examples

Setting font ligatures and contextual forms

HTML

<link href="//fonts.googleapis.com/css?family=Lora" rel="stylesheet">
<p class="normal">
  normal<br>
  if fi ff tf ft jf fj
</p>
<p class="none">
  none<br>
  if fi ff tf ft jf fj
</p>
<p class="common-ligatures">
  common-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="no-common-ligatures">
  no-common-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="discretionary-ligatures">
  discretionary-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="no-discretionary-ligatures">
  no-discretionary-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="historical-ligatures">
  historical-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="no-historical-ligatures">
  no-historical-ligatures<br>
  if fi ff tf ft jf fj
</p>
<p class="contextual">
  contextual<br>
  if fi ff tf ft jf fj
</p>
<p class="no-contextual">
  no-contextual<br>
  if fi ff tf ft jf fj
</p>
<p class="contextual">
  contextual<br>
  if fi ff tf ft jf fj
</p>

CSS

p {
  font-family: Lora, serif;
}
.normal {
  font-variant-ligatures: normal;
}

.none {
  font-variant-ligatures: none;
}

.common-ligatures {
  font-variant-ligatures: common-ligatures;
}

.no-common-ligatures {
  font-variant-ligatures: no-common-ligatures;
}

.discretionary-ligatures {
  font-variant-ligatures: discretionary-ligatures;
}

.no-discretionary-ligatures {
  font-variant-ligatures: no-discretionary-ligatures;
}

.historical-ligatures {
  font-variant-ligatures: historical-ligatures;
}

.no-historical-ligatures {
  font-variant-ligatures: no-historical-ligatures;
}

.contextual {
  font-variant-ligatures: contextual;
}

.no-contextual {
  font-variant-ligatures: no-contextual;
}

.contextual {
  font-variant-ligatures: contextual;
}

Result

Specifications

SpecificationStatusComment
CSS Fonts Module Level 3
font-variant-ligatures
RecommendationInitial definition

Browser compatibility

BCD tables only load in the browser

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.

如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论, 你可以免费 注册 一个本站的账号。
列表为空,暂无数据

词条统计

浏览:126 次

字数:12751

最后编辑:7 年前

编辑次数:0 次

    我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站,即表示您同意使用 Cookies 和您的相关数据。
    原文