textual/tests/snapshot_tests/snapshot_apps/label_widths.py

from textual.app import App
from textual.widgets import Label, Static
from rich.panel import Panel


class LabelWrap(App):
    CSS = """Screen {
              align: center middle;
          }

          #l_data {
              border: blank;
              background: lightgray;
          }

          #s_data {
              border: blank;
              background: lightgreen;
          }

          #p_data {
              border: blank;
              background: lightgray;
          }"""

    def __init__(self):
        super().__init__()

        self.data = (
            "Apple Banana Cherry Mango Fig Guava Pineapple:"
            "Dragon Unicorn Centaur Phoenix Chimera Castle"
        )

    def compose(self):
        yield Label(self.data, id="l_data")
        yield Static(self.data, id="s_data")
        yield Label(Panel(self.data), id="p_data")

    def on_mount(self):
        self.dark = False


if __name__ == "__main__":
    app = LabelWrap()
    app.run()