HTML Global Attributes

The following attributes may be used with most HTML elements
Global Attribute		Description	Version
	accesskey	For adding a keyboard shortcut to an element
	aria-*	For associating accessibility attribute values specified by WAI-ARIA	5
	class	For identifying a set of elements in order to apply styles to them
	contenteditable	For making the content of an element editable	5
	contextmenu	For identifying a contextual menu for an element (the value must be the same as a menu element's id attribute)	5
	data-*	For storing custom data that is private to the page or application	5
	dir	For specifying the element's text direction
	draggable	For making an element draggable	5
	dropzone	For identifying an element as a place where draggable elements can be dropped	5
	event	For associating an element with a script (event is a placeholder for the actual event name)
	hidden	For indicating that an element is not yet relevant or is no longer relevant	5
	id	For identifying a particular element so that it can be linked to, styled, or scripted with JavaScript
	lang	For specifying the language an element is written in
	role	For providing additional information to assistive devices about the role of an element as defined by WAI-ARIA	5
	spellcheck	For indicating whether the content of an element should have its spelling and grammar checked	5
	style	For adding local style sheet information
	tabindex	For defining the order in which the Tab key takes the visitor through elements
	title	For labeling elements with tool tips