b element Displays the text of the element as boldface text, hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section, code element Specifies that the enclosed text is programming code and should be formatted appropriately. 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':