font-variant

normal

规定一个常规（normal）字型；每个非简写的属性的初始值都是 normal。属于 font-variant 的非简写属性有：font-variant-caps, font-variant-numeric, font-variant-alternates, font-variant-ligatures 和 font-variant-east-asian。

none

将font-variant-ligatures设定为 none ，将其他非简写属性的值设定为初始值normal。

<common-lig-values>, <discretionary-lig-values>, <historical-lig-values>, <contextual-alt-values>

规定与font-variant-ligatures属性相关的关键字，可能的值包括： common-ligatures, no-common-ligatures, discretionary-ligatures, no-discretionary-ligatures, historical-ligatures, no-historical-ligatures, contextual 和 no-contextual。

stylistic(), historical-forms, styleset(), character-variant(), swash(), ornaments(), annotation()

规定与font-variant-alternates属性相关的关键字和函数。

small-caps, all-small-caps, petite-caps, all-petite-caps, unicase, titling-caps

规定与font-variant-caps 属性相关的关键字和函数。

<numeric-figure-values>, <numeric-spacing-values>, <numeric-fraction-values>, ordinal, slashed-zero

规定与font-variant-alternates属性相关的关键字，可能的值包括：lining-nums, oldstyle-nums, proportional-nums, tabular-nums, diagonal-fractions, stacked-fractions, ordinal 和 slashed-zero。

<east-asian-variant-values>, <east-asian-width-values>, ruby

规定与font-variant-east-asian属性相关的关键字，可能的值包括：jis78, jis83, jis90, jis04, simplified, traditional, full-width, proportional-width, ruby。

font-variant = 
  normal                                              |
  none                                                |
  [ [ <common-lig-values> || <discretionary-lig-values> || <historical-lig-values> || <contextual-alt-values> ] || [ small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps ] || [ stylistic( <feature-value-name> ) || historical-forms || styleset( <feature-value-name># ) || character-variant( <feature-value-name># ) || swash( <feature-value-name> ) || ornaments( <feature-value-name> ) || annotation( <feature-value-name> ) ] || [ <numeric-figure-values> || <numeric-spacing-values> || <numeric-fraction-values> || ordinal || slashed-zero ] || [ <east-asian-variant-values> || <east-asian-width-values> || ruby ] || [ sub | super ] || [ text | emoji | unicode ] ]  

<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  

<feature-value-name> = 
  <ident>  

<numeric-figure-values> = 
  lining-nums    |
  oldstyle-nums  

<numeric-spacing-values> = 
  proportional-nums  |
  tabular-nums       

<numeric-fraction-values> = 
  diagonal-fractions  |
  stacked-fractions   

<east-asian-variant-values> = 
  jis78        |
  jis83        |
  jis90        |
  jis04        |
  simplified   |
  traditional  

<east-asian-width-values> = 
  full-width          |
  proportional-width  

HTML

<p class="normal">Firefox rocks!</p>
<p class="small">Firefox rocks!</p>

CSS

p.normal {
  font-variant: normal;
}
p.small {
  font-variant: small-caps;
}

结果

• text-transform
• text-combine-upright
• text-orientation