b element Displays the text of the element as boldface text, time element The HTML time element (<time>) represents either time on a 24-hour clock or a precise date in the Gregorian calendar (with optional time and timezone information), details element The HTML details element (<details>) is used as a disclosure widget from which the user the retrieve additional information. 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':