References : HTML 4.0
The foundations of HTML were laid at the CERN, the European Organisation for Nuclear Research, in around 1990 when the need arose for a powerful and easy-to-use system for sending the centre's data to various kinds of computer terminals. Version 4.0, originally released in December 1997, was updated in April 1998 and December 1999.
The purpose of this reference is to give you a general overview of all the tags of the HTML 4.0 specification, sorted by usage categories.
How to read this reference
Within each category, the various tags are organised alphabetically and associated with the following information:
- A general tag description.
- Start/End tags: Indicates whether the start and end tags are required, optional or illegal. The differences between HTML and XHTML are marked.
- Attributes: The attributes of the element are listed, together with a short description.
- Deprecated: The deprecated attributes are listed, i.e., those that are still supported by HTML 4.0 and most browsers, but which are about to be replaced by more up-to-date techniques, such as style sheets.
- Empty: Indicates that the element can be empty.
- Notes: Provides a useful note concerning the use of the tag and indicates whether it is new, deprecated or obsolete.
The HTML 4.0 specification includes several attributes that can be applied to a number of important elements. In order to make the various tag descriptions more easily legible, these attributes have been grouped under the names %coreattrs
, and %events
, and kept in a specific section in this reference
. You can check them out at any time.
HTML tags by category: