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chromium/third_party/blink/web_tests/external/wpt/html/rendering/replaced-elements/the-select-element/select-intrinsic-option-font-size-ref.html 

<!doctype html>
<title>CSS Test Reference</title>
<select>
  <option>ABC</option>
</select>
<select>
  <option>ABC</option>
</select>