code: function(baseDir, importPath) {
      var parts = importPath.split('/');
      var pathname = path.join(baseDir, importPath);
  
      if (parts[0] === 'node_modules') {
          // Gets all but the first element of array (i.e. node_modules).
          importPath = parts.slice(1).join('/');
      }
  
      // Returns an array of all parent node_modules directories.
      var dirs = findNodeModules({
          cwd: baseDir,
          relative: false
      });
  
      _.each(dirs, function(dir) {
          if (fs.existsSync(path.join(dir, importPath))) {
              pathname = path.join(dir, importPath);
              return false; // Exits iteration by returning false.
          }
      });
  
      return pathname;
  }
docs: Finds the the import path from parent node_modules. @see {@link https://github.com/cheton/browserify-css/pull/21} for further information.