--- /dev/null
+/* @flow */
+"use strict";
+
+/**
+ * Stringify PostCSS node including its raw "before" string.
+ */
+module.exports = function(node /*: Object*/) /*: string*/ {
+ let result = "";
+ if (node.raws.before) {
+ result += node.raws.before;
+ }
+ result += node.toString();
+ return result;
+};