I’ve added two sniffs into the Generic standard. The codes are Generic.Arrays.DisallowLongArraySyntax and Generic.Arrays.DisallowShortArraySyntax and both also fix the errors found.
Generic.Arrays.DisallowLongArraySyntax
Generic.Arrays.DisallowShortArraySyntax
Sass 3.2 introduced a special feature called placeholder selectors. They’re also referred to as “silent classes” because they won’t appear in our CSS output unless we @extend them.
@extend
It’s usually better to extend a placeholder selector instead of a class selector…