firefox/testing/web-platform/meta/css/css-rhythm/parsing/block-step-round-valid.html.ini

[block-step-round-valid.html]
  [e.style['block-step-round'\] = "up" should set the property value]
    expected: FAIL

  [e.style['block-step-round'\] = "down" should set the property value]
    expected: FAIL

  [e.style['block-step-round'\] = "nearest" should set the property value]
    expected: FAIL