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, style element Creates a style sheet within the document, var element Specifies that the enclosed text is a variable. 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':