from textual.app import App, ComposeResult from textual.containers import Horizontal from textual.widgets import Static class NestingDemo(App): """App that doesn't have nested CSS.""" CSS_PATH = "nesting01.tcss" def compose(self) -> ComposeResult: with Horizontal(id="questions"): yield Static("Yes", classes="button affirmative") yield Static("No", classes="button negative") if __name__ == "__main__": app = NestingDemo() app.run()