samp element Specifies that the enclosed text is sample text and should be rendered in the browser appropriately, keygen element The HTML keygen element exists to facilitate generation of key material, and submission of the public key as part of an HTML form, embed element Defines an object, such as a multimedia file, embedded in an HTML 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':