Sequence: Multi-line Note In Block

A multi-line note inside a block: the note is as tall as its text and the block closes below it.

Loop Block Note

sequence-multi-line-note-in-block.mmd

sequenceDiagram
  participant A
  participant B
  loop poll
    A->>B: ping
    Note left of A: first line<br/>second line<br/>third line
  end
  B->>A: pong

Output

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More Sequence diagram examples

Sequence: Basic Messages

Sequence: Participant Aliases

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Sequence: Arrow Types

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Sequence: Self-Messages