comma-separated-text 

The comma-separated-text type is used to specify a comma-separated list of text elements, as is used by the font-family attribute.

Simple Type Information

Used By

Attribute font/@font-family

Source 

<xs:simpleType name="comma-separated-text">
  <xs:annotation>
    <xs:documentation>The comma-separated-text type is used to specify a comma-separated list of text elements, as is used by the font-family attribute.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:token">
    <xs:pattern value="[^,]+(, ?[^,]+)*"/>
  </xs:restriction>
</xs:simpleType>