1. classList (DOMTokenList)

    Method of easily manipulating classes on elements, using the `DOMTokenList` object.

  2. Node.compareDocumentPosition()

    Compares the relative position of two nodes to each other in the DOM tree.

  3. display: run-in

    If the run-in box contains a block box, same as block. If a block box follows the run-in box, the run-in box becomes the first inline box of the block box. If an inline box follows, the run-in box becomes a block box.

  4. WOFF - Web Open Font Format

    Compressed TrueType/OpenType font that contains information about the font's source.

  5. domstringlist api: contains

  6. domtokenlist api: contains

  7. node api: contains

  8. selection api: containsnode

  9. selection api: containsnode: `partialcontainment` parameter is optional