b element Displays the text of the element as boldface text, base element Specifies a base URL for all of the relative URLs in the document to use, audio element The audio element is used to embed sound content in an HTML or XHTML 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':