font-variant-alternatesプロパティ

Value：normal | inherit | [ <contextual-alt-values> || stylistic(<feature-value-name>) || historical-forms || styleset(<feature-value-name> [, <feature-value-name>]*) || character-variant(<feature-value-name> [,<feature-value-name>]*) || swash(<feature-value-name>) || ornaments(<feature-value-name>) || annotation(<feature-value-name>) || ruby ]
Initial：normal
Applies to：all elements
Inherited：yes
Percentages：N/A
Media：visual
Computed value：as specified