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Level 1 HTML Summary

A Level 1 HTML document can include the following elements and attributes in addition to Level 0 elements and attributes. Within this document, the elements are listed in all capital letters; the attributes are indicated by initial capital letters. In order to benefit from the information in this file, view both its HTML source (http://www.december.com/html/spec/level1.html) as well as its rendered form in a Web browser. The tags are explained in the list below as well as demonstrated in this file. In many cases, some of the attributes described here are rarely used (or supported) by Web browsers. For the most part, I've tried to illustrate the more popularly-used constructs within this document as a guideline. This is particularly true with HEAD and related elements.

HTML structure and comment elements

Level 1 specifies no additions in this category over Level 0's structure features.

The HEAD and Related Elements

Level 1 specifies no additions in this category over Level 0's head elements.

The BODY and Related Elements

Level 1 defines several semantic elements for character formatting:
- CITE: Marks a citation of a book or other work: The Mona Lisa.
- CODE: Used to mark computer language source code; often rendered as monospace type:
  Note that the CODE element's rendering does not keep the line breaks that the PRE element does. This is in CODE.
```
        Note that the CODE 
        element's rendering does not
        keep the line breaks that the 
        PRE element does.
        This is in PRE.
        
```
- EM: Used to mark emphasis, typically rendered the same as the physical tag for italics or as underlined text.
- KBD: Used in computer instructions to mark text the user enters on a keyboard; typically rendered as monospaced text.
- SAMP: Used to delimit a sequence of characters that are to be rendered as is ("sample" text): # @ % * !.
- STRONG: Used to mark strong emphasis; often rendered the same as the physical bold element.
- VAR: used to mark a variable used in computer code, equations, or other work. A variable is typically rendered in italic.
Level 1 defines several physical format elements that allow formatting of characters in a document. These are called physical elements because they dictate the appearance of the text rather than the semantic intent of the words (contrast with Level 1's semantic elements for character formatting listed above).
- B: Marks bold text
- I: Marks italic (or underlined) text
- TT: Marks teletype (fixed with typewriter) text

References

HTML 2.0 specification

John December (john@december.com) / 03 Jun 1996