.mybox {
  border-spacing: inherit;
  border-spacing: 10px;
  border-spacing: 10pt 10pt;
  border-spacing: -10px; /* Noncompliant !{Update the invalid value of property "border-spacing". Expected format: <length>(>=0) <length>(>=0)?}! */
  border-spacing: 10pt -10pt; /* Noncompliant */
  border-spacing: 10pt 10pt 10pt; /* Noncompliant */
}