details element The HTML details element (<details>) is used as a disclosure widget from which the user the retrieve additional information, input element Defines an input element, such as a text field control or button, within a form, audio element The audio element is used to embed sound content in an HTML or XHTML document. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.
Click the html element name in the punctuation list to advance the example in 'Tryit-Editor':