details element The HTML details element (<details>) is used as a disclosure widget from which the user the retrieve additional information, samp element Specifies that the enclosed text is sample text and should be rendered in the browser appropriately, h3 element Heading Level 3. 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':