## 6.3.6 Document Objects

class Document( )

  The top-level node of a document that contains all other nodes.

createDocumentFragment( )

  instantiate a new document fragment

createElement(tagName)

  instantiate a new element with the given name

createTextNode(data)

  instantiate a new text node initialized with data

importNode(importedNode, deep=False)

  import a node from another document. If deep is true, all nodes within importedNode are cloned.

normalizeDocument( )

  concatenate all consecutive text nodes and remove comments