mime-subtype Mime Subtype
Mime subtype for a graphic, multimedia object, or piece of supplementary material.
Values Best Practice
The source for this attribute’s values is the Internet Assigned Numbers Authority (IANA).
Element Best Practice
Although this Tag Set cannot enforce it, the element <graphic> should be limited to still images. The element <media> should be reserved for objects whose @mime-subtype involves video, audio, moving images, time-dependent graphic types, and other non-XML data types. Mimetypes and subtypes should be set accordingly but are not constrained by this Tag Set.
OPTIONAL on many elements; click for list and usage
|Text, numbers, or special characters||A specific mime subtype (IANA).|
|Restriction||This is an optional attribute; there is no default.|