Html elements embed, command, and iframe

embed element Defines an object, such as a multimedia file, embedded in an HTML document, command element The command element represents a command which the user can invoke, iframe element Defines an inline frame (ie a frame embedded in a document). These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

Restore previous example

embed embed and command, embed, command, and iframe

Advanced example

Click the html element name in the punctuation list to advance the example in 'Tryit-Editor':

You cannot advance example level further.