Testing Mermaid

mindmap
  root((mindmap))
    Origins
      Long history
      ::icon(fa fa-book)
      Popularisation
        British popular psychology author Tony Buzan
    Research
      On effectiveness<br/>and features
      On Automatic creation
        Uses
            Creative techniques
            Strategic planning
            Argument mapping
    Tools
      Pen and paper
      Mermaid

sequenceDiagram
  Alice ->> Bob: Hello Bob, how are you?
  Bob-->>John: How about you John?
  Bob--x Alice: I am good thanks!
  Bob-x John: I am good thanks!
  Note right of John: Bob thinks a long<br/>long time, so long<br/>that the text does<br/>not fit on a row.

  Bob-->Alice: Checking with John...
  Alice->John: Yes... John, how are you?