1. CSS element() function

    This function renders a live image generated from an arbitrary HTML element

  2. Element.insertAdjacentElement() & Element.insertAdjacentText()

    Methods for inserting an element or text before or after a given element, or appending or prepending an element or text to a given element's list of children.

  3. htmloutputelement api: `htmloutputelement()` constructor

  4. css property: background-image: `element()`