/// <summary>
 ///     Add elements to the set of matched elements.
 /// </summary>
 /// <param name="original"></param>
 /// <param name="bOfClass">
 ///     bootstrap of classes
 /// </param>
 public static JquerySelectorExtend Add(this JquerySelectorExtend original, B bOfClass)
 {
     return(original.Add(r => r.Class(bOfClass)));
 }