anchor.diff:    div
       ..classes.add('taskcontainer')
       ..append(singleTaskElement(tasksummary))
  -    ..append(editTaskElement(tasksummary))
  -    ..onClick.listen((e) => div.classes.toggle('hideedittask'));
  -  
  +    ..append(editTaskElement(tasksummary));
  +
     return div;
   }
   
  -// append for each task in tasks a taskContainer 
  +// append for each task in tasks a taskContainer
   // element to div '#listtasks'.
   void displayTasks() {
     DivElement div = querySelector('#listtasks');
  
positive.code:     ..classes.add('summarytext');
    li
      ..classes.add('singletask')
      ..append(p);
    return li;
  }
  
  // editTaskElement returns a List Element that as an 
  // TextInput Element as a child node. The value of
  //  the textinput element is set to the given parameter tasksummary.
  LIElement editTaskElement(String tasksummary) {
  
negative.code: import 'package:ddays/storageservice.dart' show loadFromStorage;
  
  // singleTaskElement returns a List Element that has
  //  a paragraphelement as a child node. The text of
  // the paragraphelement is set to the parameter 'tasksummary'.
  LIElement singleTaskElement(String tasksummary) {
    LIElement li = new LIElement();
  