Mime subtype for a graphic, multimedia object, or piece of supplementary material.
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.
The source for this attribute’s values is the Internet Assigned Numbers Authority (IANA).
| Value | Meaning |
|---|---|
| cgm | Computer Graphics Metafile. |
| gif | CompuServe Graphic Interchange Format. |
| jpeg | Joint Photographic Experts Group raster. |
| png | Portable Network Graphics. |
| tiff | Tag Image File Format. |
| Restriction: | |
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | A specific mime subtype (from the November 2003 list). |
| Restriction: | |