HTML - Attribute Reference

There are few HTML attributes which are standard and associated to all the HTML tags. These attributes are listed here with a brief description.

Global Attributes

Not valid in base, head, html, meta, param, script, style, and title elements.

Attribute HTML-5 Description
accesskey Specifies a shortcut key for an element to be used in place of keyboard.
class The class of the element
contenteditable Yes Boolean attribute to specify whether the element is editable or not.
contextmenu Yes Specifies a context menu for an element.
data-* Yes Used to store custom data associated with the element.
draggable Yes Boolean attribute to specify whether the element can be dragged or not.
dropzone Yes Specifies whether the dragged data is copied, moved, or linked, when dropped.
hidden Yes Specifies whether element should be visible or not.
id   A unique id for the element
spellcheck Yes Specifies if the element must have it's spelling or grammar checked.
style An inline style definition
tabindex Specifies the tab order of an element.
title   A text to display in a tool tip
translate Yes Boolean attribute specifies whether the content of an element should be translated or not

Language Attributes

The lang attribute indicates the language being used for the enclosed content. The language is identified using the ISO standard language abbreviations, such as fr for French, en for English, and so on.

RFC 1766 ( describes these codes and their formats.

Not valid in base, br, frame, frameset, hr, iframe, param, and script elements.

Attribute Value Description
dir ltr | rtl Sets the text direction
lang language_code Sets the language code