HTML 4.01 / XHTML 1.0 Reference

Ordered Alphabetically
DTD: indicates in which HTML 4.01 / XHTML 1.0 DTD the tag is allowed. S=Strict, T=Transitional, and [...]

HTML / XHTML Standard Attributes

The attributes listed below are standard, and are supported by all HTML and XHTML tags, with a few [...]

HTML / XHTML Standard Event Attributes

Standard Event Attributes
HTML 4 added the ability to let events trigger actions in a browser, like starting a [...]

HTML Color Names

HTML Colors
The table below provides a list of the color names that are supported by all [...]

HTML Character Sets

HTML Character Sets
To display an HTML page correctly, the browser must know what character-set to use.
The [...]

HTML ASCII Reference

The ASCII character-set is used to send information between computers on the Internet.

The ASCII Character Set
ASCII [...]

HTML ISO-8859-1 Reference

Modern browsers supports several character-sets:

ASCII character set
Standard ISO character sets
Mathematical symbols, Greek letters, and [...]

HTML Symbol Entities Reference

HTML Symbol Entities
This entity reference includes mathematical symbols, Greek characters, various arrows, technical symbols and shapes.
Note: Entity names [...]

HTML URL Encoding Reference

URL encoding converts characters into a format that can be safely transmitted over the Internet.

URL – Uniform Resource [...]

HTML Language Code Reference

ISO Language Codes
The HTML lang attribute can be used to declare the language of a Web page or [...]

HTTP Status Messages

When a browser requests a service from a web server, an error might occur.
This is a list of [...]