The following typographic conventions are used in this specification:
markup- Markup (elements, attributes, properties), machine processable values (string, characters, media types), property name, or a file name is in red-orange monospace font.
- variable
- A variable in pseudo-code or in an algorithm description is in italics.
- definition
- A definition of a term, to be used elsewhere in this or other specifications, is in bold and italics.
- definition reference
- A reference to a definition in this document is underlined and is also an active link to the definition itself.
markup definition reference- A references to a definition in this document, when the reference itself is also a markup, is underlined, red-orange monospace font, and is also an active link to the definition itself.
- external definition reference
- A reference to a definition in another document is underlined, in italics, and is also an active link to the definition itself.
markup external definition reference- A reference to a definition in another document, when the reference itself is also a markup, is underlined, in italics red-orange monospace font, and is also an active link to the definition itself.
- hyperlink
- A hyperlink is underlined and in blue.
- [reference]
- A document reference (normative or informative) is enclosed in square brackets and links to the references section.
- Changes from Recommendation
- Sections or phrases changed from the previous Recommendation are highlighted.
Notes are in light green boxes with a green left border and with a "Note" header in green. Notes are normative or informative depending on the whether they are in a normative or informative section, respectively.
Examples are in light khaki boxes, with khaki left border, and with a
numbered "Example" header in khaki. Examples are always informative.
The content of the example is in monospace font and may be syntax colored.