When validating a _partial.SCCS file in Tools it finds an error after the $headings, not recognising hHowever if I load the same address in my Browser it finds no error.I use scss formatWhy ??
W3C CSS validator doesn't support SCSS but you can run it after converting to CSS. The page loaded in the browser presumably has SCSS already converted to CSS or the validator is unaware of those blocks.
Hope this helps.
I believe that it was not able identify a variable.thanks