input element Defines an input element, such as a text field control or button, within a form, hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section, ruby element Defines a container for Ruby Text. 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':