[dynamic-inert-on-focused-element.tentative.html]
  [<input> that gets 'inert' attribute]
    expected: FAIL

  [<input> whose parent gets 'inert' attribute]
    expected: FAIL

  [<button> that gets 'inert' attribute]
    expected: FAIL

  [<div> that gets 'inert' attribute]
    expected: FAIL

  [<div> whose parent gets 'inert' attribute]
    expected: FAIL

  [<div> whose grandparent gets 'inert' attribute]
    expected: FAIL
