docs: function(array) {
        // console.log(array);
        if (array.length) {
          var len = array.length,
            output = "\n";
  
          for (var i = 0; i < len; i++) {
            var len2 = responsiveArray[i].length - 1;
  
            output += "@media " + array[i][1] + " { \n";
            for (var a = len2; a > 1; a--) {
              output += "\t." + array[i][0] + "_" + array[i][a] + " { \n";
              output += "\t\t." + array[i][a] + ";\n";
              output += "\t} \n";
            }
            output += "}\n";
  
          }
          grunt.log.ok('File "' + destResponsive + '" create.');
          return output;
        }
        grunt.log.writeln("Responsive class: empty");
      }