font-variant-ligatures

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。

尝试一下

Syntax

css

/* 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 and text. It also applies to `::first-letter` and `::first-line`.
是否是继承属性	yes
计算值	as specified
Animation type	discrete

Formal syntax

font-variant-ligatures = 
  normal                                              |
  none                                                |
  [ <common-lig-values> || <discretionary-lig-values> || <historical-lig-values> || <contextual-alt-values> ]  

<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

示例

Setting font ligatures and contextual forms

HTML

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

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;
}

结果

Specifications

Specification
CSS Fonts Module Level 4 # font-variant-ligatures-prop

Browser compatibility

BCD tables only load in the browser