Variables don't use proper standard

[evaneliasyoung]

trafficstars

Correct Syntax (CSSComb Complains)

:root {
   --doc-main-bg: #003366;  /* Complaint Here */
}
body {
   background-color: var(doc-main-bg);
}

Years-Old Syntax (CSSComb Approves, but doesn't work anymore)

:root {
   var-doc-main-bg: #003366;  /* All Good (Not Really) */
}
body {
   background-color: var(doc-main-bg);
}

[jchouse]

Core bug. Will be fixed https://github.com/csscomb/csscomb.js/pull/595