   new go.Shape({ fill: "white" }),
      new go.Panel("Vertical", { margin: 3, stretch: go.Stretch.Fill, background: "red" })
        .add(
          new go.TextBlock({ stretch: go.Stretch.Fill, background: "lime" })
            .bind("text", "t1"),
          new go.TextBlock({ stretch: go.Stretch.Fill, background: "cyan" })
            .bind("text", "t2")
        )
    );

diagram.model.nodeDataArray = [{ t1: "Top", t2: "Bottom"}];
</code></pre>
<script>goCode("fifth", 500, 140)</script>
<p>
  Now the Tex