anchor.diff:  
   [source,scala]
   -----------------------------------
  -val render: Render[MyState] = {
  +val render: Render = {
     case Anonymous(_) =>
       'body(
         'form(
  
positive.code: 
  Web Components
  ~~~~~~~~~~~~~~
  (TODO)
  
  Korolev standalone server
  -------------------------
  
negative.code: 
  Render is called for each new state. Important to understand that render produces a full DOM for every call. It does not mean that client receives a new page every time. Korolev makes a diff between current and latest DOM. Only changes will be sent to the client.
  
  `Render` is a type alias to `PartialFunction[S, Document.Node]` where `S` is a type of your state.
  
  Transitions
  ~~~~~~~~~~~
  