values = "
/* Keyword value */
z-index: auto;
/* <integer> values */
z-index: 0;
z-index: 3;
z-index: 289;
z-index: -1; /* Negative values to lower the priority */
/* Global values */
z-index: inherit;
z-index: initial;
z-index: revert;
z-index: unset;
";
all = Sort@StringCases;
"[\"" <> StringRiffle <> "\"].contains(&mode)" // CopyToClipboard