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HTML / XHTML Standard Attributes

The attributes listed below are standard, and can be used in nearly all HTML/XHTML tags.

Core Attributes

Valid in all elements, except: <base>, <head>, <html>, <meta>, <param>, <script>, <style>, and <title>.

Attribute Description
class Specifies one or more classnames for an element (refers to a class in a style sheet)
id Specifies a unique id for an element
style Specifies an inline CSS style for an element
title Specifies extra information about an element

Language Attributes

Valid in all elements, except: <base>, <br>, <frame>, <frameset>, <hr>, <iframe>, <param>, and <script>.

Attribute Description
dir Specifies the text direction for the content in an element
lang Specifies the language of the element's content
xml:lang Specifies the language of the element's content (for XHTML documents)

Keyboard Attributes

Attribute Description
accesskey Specifies a shortcut key to activate/focus an element
tabindex Specifies the tabbing order of an element

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