Fixed field demo. A fixed field can be only empty or have a fixed value. HTML5 disabled for isolating behavior. Required [attribute], Single Occurrence, with Simple Type [inline-Form-FixedVersion] localName is [FixedVersion] without namespace Optional [attribute], Single Occurrence, with Simple Type [inline-Form-FixedVersionOptional] localName is [FixedVersionOptional] without namespace Fixed field demo. A fixed field can be only empty or have a fixed value. HTML5 disabled for isolating behavior.