graph TD
      A[Christmas] -->|Get money| B(Go shopping)
      subgraph 1test["id starting with number"]
      A
      end
      style 1test fill:#F99,stroke-width:2px,stroke:#F0F
    

    graph TD
      A.a[Christmas]:::someclass -->|Get money| B(Go shopping):::someclass
      subgraph test["id starting with number"]
      A.a
      end
      style test fill:#F99,stroke-width:2px,stroke:#F0F
      classDef someclass fill:#f96;
    

      graph TD
      9e122290-->82072290_1ec3_e711_8c5a_005056ad0002
      style 9e122290 fill:#F99,stroke-width:2px,stroke:#F0F