iframe element Defines an inline frame (ie a frame embedded in a document), script element Specifies that the enclosed content is a client-side script, video element The HTML <video> element is used to embed video content in an HTML or XHTML document. 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':