[break-before-valid.html]
  [e.style['break-before'\] = "region" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "avoid-region" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "recto" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "avoid-column" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "avoid-page" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "verso" should set the property value]
    expected: FAIL

  [e.style['break-before'\] = "column" should set the property value]
    expected: FAIL