chromium/third_party/blink/web_tests/css3/selectors3/xml/css3-modsel-173b.css

 tests, tests * { display: block; color: red; }
 testA[*|attribute] { color: green; }
 testB[*|attribute="pass"] { color: green; }
 testC[*|attribute~="pass"] { color: green; }
 testD[*|attribute^="pass"] { color: green; }
 testE[*|attribute*="pass"] { color: green; }
 testF[*|attribute$="pass"] { color: green; }
 testG[*|attribute|="pass"] { color: green; }