[align_center_position_50.html]
  disabled:
    if (os == "win"): https://bugzilla.mozilla.org/show_bug.cgi?id=1536762
    if (os == "android"): https://bugzilla.mozilla.org/show_bug.cgi?id=1536762
  fuzzy: align_center_position_50-ref.html:maxDifference=0-2;totalPixels=0-5000