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, strong element Specifies that the enclosed text should be rendered in the browser as "strong" (usually bold) 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':