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, br element Specifies a hard line break in the text, base element Specifies a base URL for all of the relative URLs in the document to use. 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':