Fix sass error

While running coco-brunch, I get this error:
error: Compiling of 'app/styles/editor/level/edit.sass' failed. Syntax error: Properties are only allowed within rules, directives, mixin includes, or other properties.
        on line 30 of standard input
  Use --trace for backtrace.

It appears sass views a comment as the parent of the property in this line and thus invalid. I'll probably raise an issue with sass about this but for now, I've moved comment.