HTML attribute: Difference between revisions

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{{short description|Special words used inside the opening tag to control the element's behaviour}}

'''HTML attributes''' are special words used inside the opening tag to control the element's behaviour. It is a piece of markup language used to adjust the behavior or display of an HTML element.HTML attributes are a modifier of a ''[[HTML element]] type''. An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them. In [[HTML]] syntax, an attribute is added to aan ''[[HTML tags|HTML start tag]]''.

Several basic attributes types have been recognized, including: (1) ''required attributes'' needed by a particular element type for that element type to function correctly; (2) ''optional attributes'' used to modify the default functionality of an element type; (3) ''standard attributes'' supported by many element types; and (4) ''event attributes'' used to cause element types to specify scripts to be run under specific circumstances.

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Technically all standard attributes must be accepted by all elements, though they will not function with some elements.<ref name="HTMLReference">{{cite web | url=https://developer.mozilla.org/en-US/docs/Web/HTML/Reference | title=HTML reference – HTML (HyperText Markup Language) |website=MDN Web Docs | access-date=13 February 2015}}</ref> The table below lists some common standard attributes, and some elements they can function with.

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!{{MDNHTMLRef|param}}

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| {{ya|dir}}

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| {{ya|dir}}

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| {{ya|dir}}

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| {{ya|title}}

| {{ya|dir}}

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!{{MDNHTMLRef|applet}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

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!{{MDNHTMLRef|br}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

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!{{MDNHTMLRef|frame}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

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!{{MDNHTMLRef|frameset}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

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!{{MDNHTMLRef|iframe}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

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!{{MDNHTMLRef|basefont}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|center}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|dir}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|font}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|menu}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|s}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|strike}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|u}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|abbr}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|acronym}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|address}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|b}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|big}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|blockquote}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|body}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|caption}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|cite}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|code}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|col}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|colgroup}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

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!{{MDNHTMLRef|dd}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|del}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|dfn}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|div}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|dl}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|dt}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|em}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|fieldset}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|form}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|hr}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|h1}}, {{MDNHTMLRef|h2}}, {{MDNHTMLRef|h3}}, {{MDNHTMLRef|h4}}, {{MDNHTMLRef|h5}}, {{MDNHTMLRef|h6}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|i}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|img}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|ins}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|kbd}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|li}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|link}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|map}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|noframes}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|noscript}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|ol}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|optgroup}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|option}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|p}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|pre}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|q}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|samp}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|small}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|span}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|strong}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|sub}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|sup}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|table}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|tbody}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|td}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|tfoot}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|th}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|thead}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|tr}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|tt}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|ul}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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!{{MDNHTMLRef|var}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

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|-

!{{MDNHTMLRef|label}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

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|-

!{{MDNHTMLRef|legend}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

|

|-

!{{MDNHTMLRef|object}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

|

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|select}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

|

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|a}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|area}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|button}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|input}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

| {{ya|tabindex}}

|-

!{{MDNHTMLRef|textarea}}

| {{ya|id}}

| {{ya|class}}

| {{ya|style}}

| {{ya|title}}

| {{ya|dir}}

| {{ya|lang}}

| {{ya|xml:lang}}

| {{ya|accesskey}}

| {{ya|tabindex}}

|}

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{{sticky header}}

{| class="wikitable sortable sticky-header"

|-

! Element