input docs an exampels

docs/examples/guide/input/mouse01.py

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+from textual.app import App, ComposeResult
+
+from textual import events
+from textual.layout import Container
+from textual.widgets import Static, TextLog
+
+
+class PlayArea(Container):
+    def on_mount(self) -> None:
+        self.capture_mouse()
+
+    def on_mouse_move(self, event: events.MouseMove) -> None:
+        self.screen.query_one(TextLog).write(event)
+        self.query_one(Ball).offset = event.offset - (8, 2)
+
+
+class Ball(Static):
+    pass
+
+
+class MouseApp(App):
+    CSS_PATH = "mouse01.css"
+
+    def compose(self) -> ComposeResult:
+        yield TextLog()
+        yield PlayArea(Ball("Textual"))
+
+
+if __name__ == "__main__":
+    app = MouseApp()
+    app.run()