HTML Attributes
HTML / XHTML Standard Attributes
The attributes listed below are standard, and are supported by all HTML and XHTML tags, with a few exceptions.
Core Attributes
Not valid in base, head, html, meta, param, script, style, and title elements.| Attribute | Value | Description |
|---|---|---|
| class | classname | Specifies a classname for an element |
| id | id | Specifies a unique id for an element |
| style | style_definition | Specifies an inline style for an element |
| title | text | Specifies extra information about an element |
Language Attributes
Not valid in base, br, frame, frameset, hr, iframe, param, and script elements.| Attribute | Value | Description |
|---|---|---|
| dir | ltr rtl | Specifies the text direction for the content in an element |
| lang | language_code | Specifies a language code for the content in an element. Language code reference |
| xml:lang | language_code | Specifies a language code for the content in an element, in XHTML documents. Language code reference |
Keyboard Attributes
| Attribute | Value | Description |
|---|---|---|
| accesskey | character | Specifies a keyboard shortcut to access an element |
| tabindex | number | Specifies the tab order of an element |
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