command element The command element represents a command which the user can invoke, progress element The HTML progress (<progress>) element is used to view the completion progress of a task, samp element Specifies that the enclosed text is sample text and should be rendered in the browser 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':