<===> input.scss
@else{}

<===> error
Error: Invalid CSS: @else must come after @if
        on line 1 of input.scss
  Use --trace for backtrace.

<===> error-dart-sass
Error: This at-rule is not allowed here.
  ,
1 | @else{}
  | ^^^^^
  '
  input.scss 1:1  root stylesheet