@font-feature-values
Quick Summary for @swash
@font-feature-values
CSS at-rule lets you use a common name in the font-variant-alternates
property for features activated differently in OpenType. This can help simplify your CSS when using multiple fonts.
Code Usage for @swash
/* At-rule for "nice-style" in Font One */ @font-feature-values Font One { @styleset { nice-style: 12; } } /* At-rule for "nice-style" in Font Two */ @font-feature-values Font Two { @styleset { nice-style: 4; } } … /* Apply the at-rules with a single declaration */ .nice-look { font-variant-alternates: styleset(nice-style); }
More Details for @swash
@font-feature-values
The @font-feature-values
CSS at-rule lets you use a common name in the font-variant-alternates
property for features activated differently in OpenType. This can help simplify your CSS when using multiple fonts.
The @font-feature-values
at-rule may be used either at the top level of your CSS or inside any CSS conditional-group at-rule.
Syntax
Feature value blocks
@swash
Specifies a feature name that will work with the swash()
functional notation of font-variant-alternates
. A swash feature value definition allows only one value: ident1: 2
is valid, but ident2: 2 4
isn't.
@annotation
Specifies a feature name that will work with the annotation()
functional notation of font-variant-alternates
. An annotation feature value definition allows only one value: ident1: 2
is valid, but ident2: 2 4
isn't.
@ornaments
Specifies a feature name that will work with the ornaments()
functional notation of font-variant-alternates
. An ornaments feature value definition allows only one value: ident1: 2
is valid, but ident2: 2 4
isn't.
@stylistic
Specifies a feature name that will work with the stylistic()
functional notation of font-variant-alternates
. A stylistic feature value definition allows only one value: ident1: 2
is valid, but ident2: 2 4
isn't.
@styleset
Specifies a feature name that will work with the styleset()
functional notation of font-variant-alternates
. A styleset feature value definition allows an unlimited number of values: ident1: 2 4 12 1
maps to the OpenType values ss02
, ss04
, ss12
, and ss01
. Note that values higher than 99
are valid, but don't map to any OpenType values and are ignored.
@character-variant
Specifies a feature name that will work with the character-variant()
functional notation of font-variant-alternates
. A character-variant feature value definition allows either one or two values: ident1: 3
maps to cv03=1
, and ident2: 2 4
maps to cv02=4
, but ident2: 2 4 5
is invalid.
Formal syntax
@font-feature-values <family-name># { <feature-value-block-list> }where
<family-name> = <string> | <custom-ident>+<feature-value-block-list> = <feature-value-block>+
where
<feature-value-block> = <feature-type> '{' <feature-value-declaration-list> '}'
where
<feature-type> = @stylistic | @historical-forms | @styleset | @character-variant | @swash | @ornaments | @annotation<feature-value-declaration-list> = <feature-value-declaration>
where
<feature-value-declaration> = <custom-ident>: <integer>+;
Examples
Using @styleset in a @font-feature-values rule
/* At-rule for "nice-style" in Font One */ @font-feature-values Font One { @styleset { nice-style: 12; } } /* At-rule for "nice-style" in Font Two */ @font-feature-values Font Two { @styleset { nice-style: 4; } } … /* Apply the at-rules with a single declaration */ .nice-look { font-variant-alternates: styleset(nice-style); }
Specifications
Specification |
---|
CSS Fonts Module Level 4 # font-feature-values |
See also
Thefont-variant-alternates
property that uses values that this at-rule defines. Last modified: Jan 20, 2022, by MDN contributors
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