.mybox {
  cue: inherit;
  cue: none;
  cue: url(http://mybox.com);
  cue: abc; /* Noncompliant !{Update the invalid value of property "cue". Expected format: <cue-before> <cue-after>?}! */
  cue: 10px; /* Noncompliant */
  cue: url(http://mybox.com) url(http://mybox.com);
  cue: url(http://mybox.com) url(http://mybox.com) url(http://mybox.com); /* Noncompliant */
  cue: none url(http://mybox.com);
  cue: none none;
  cue: none abc;  /* Noncompliant */
}
