pre element Specifies that the enclosed text is preformatted and that whitespace should be preserved 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, button element Defines a clickable Button element. 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':