HTML attribute: Difference between revisions

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{{Html series}}

An '''HTML attribute''' is a modifier of an ''[[HTML element]]''. They are usually added to a ''[[HTML tag|HTML start tag]]'', which along with ''content'' and ''end tag'' comprises most HTML elements. Particular attributes are only supported by particular element classestypes; if they are added to elements that do not support them they will not function.

Some attributes are ''required attributes'', needed by particular element classestypes for them to function correctly; while in other cases they are ''optional attributes'', only needed when something other than the default formatting is required. ''Standard attributes'' are supported by a large number of element classestypes; they include ''event attributes'', which trigger elements to specify scripts to be run under specific circumstances.

Although some attributes are used in more than one type of HTML element, they do not necessarily have the same function in different types of elements. For example the attribute ''name'' is used by several elemet types, but has slightly different functions in each.<ref name="html4attributes">{{cite web | url=http://www.w3.org/TR/html4/index/attributes.html | title=Index of the HTML 4 Attributes | accessdate=13 February 2015}}</ref>

==Description==