info below

      %%{init: {'theme': 'base',  'fontFamily': 'courier', 'themeVariables': {  'primaryColor': '#fff000'}}}%%
      classDiagram
       class BankAccount{
        +String owner
        +BigDecimal balance
        +deposit(amount) bool
        +withdrawl(amount) int
       }
       cssClass "BankAccount" customCss

    

      %%{init: {'theme': 'base',  'fontFamily': 'courier', 'themeVariables': {  'primaryColor': '#fff000'}}}%%
      classDiagram-v2
classA <|-- classB : implements
classC *-- classD : composition
classE o-- classF : aggregation
    

        %%{init: {'theme': 'base',  'fontFamily': 'courier', 'themeVariables': {  'primaryColor': '#fff000'}}}%%
        classDiagram
         class BankAccount{
          +String owner
          +BigDecimal balance
          +deposit(amount) bool
          +withdrawl(amount) int
        }
          Class01~T~ <|-- AveryLongClass : Cool
          Class03~T~ *-- Class04~T~
            Class01 : size()
            Class01 : int chimp
            Class01 : int gorilla
            Class08 <--> C2: Cool label
            class Class10~T~ {
              <<service>>
              int id
              test()
            }
            callback Class01 "callback" "A Tooltip"

    

      flowchart TB
      a_a(Aftonbladet) --> b_b[gorilla]:::apa --> c_c{chimp}:::apa -->a_a
      a_a --> c --> d_d --> c_c
      classDef apa fill:#f9f,stroke:#333,stroke-width:4px;
      class a_a apa;
      click a_a "https://www.aftonbladet.se" "apa"

    

        classDiagram-v2

        classA -- classB : Inheritance
        classA -- classC : link
        classC -- classD : link
        classB -- classD
        classA --|> classB : Inheritance
        classC --* classD : Composition
        classE --o classF : Aggregation
        classG --> classH : Association
        classI -- classJ : Link(Solid)
        classK ..> classL : Dependency
        classM ..|> classN : Realization
        classO .. classP : Link(Dashed)
        classA : +attr1
        classA : attr2
        classA : method1()
        <<interface>> classB
        classB : method2() int

        Customer "1" --> "*" Ticket
        Student "1" --> "1..*" Course
        Galaxy --> "many" Star : Contains
        <<interface>> Customer

        class Shape
        callback Shape "callbackFunction" "This is a tooltip for a callback"