Class ScrollApp

tests/test_compositor.py:11–33

    """

    class ScrollApp(App):
        CSS = """
        Screen {
            overflow: scroll;
        }
        Container {
            width: 200vw;
        }
        #hello {
            width: 20;
            height: 10;
            offset: 50 10;
            background: blue;
            color: white;
        }
        """

        def compose(self) -> ComposeResult:
            with Container():
                yield Static("Hello", id="hello")

        def on_mount(self) -> None:
            self.screen.scroll_to(20, 0, animate=False)

    app = ScrollApp()
    async with app.run_test() as pilot: