fieldset element Defines a set of related form controls to be grouped together, sub element Specifies that the enclosed text should be rendered in the browser as subscript, input element Defines an input element, such as a text field control or button, within a form. 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':