added sandbox

sandbox/will/layer_order.py

@@ -0,0 +1,39 @@
+from textual.app import App, ComposeResult
+from textual.widgets import Static
+
+
+class OrderApp(App):
+
+    CSS = """
+    Screen {
+        layout: center;
+    }
+    Static {
+        border: heavy white;
+    }
+    #one {
+        background: red;
+        width:20;
+        height: 30;
+    }
+    #two {
+        background: blue;
+        width:30;
+        height: 20;
+    }
+    #three {
+        background: green;
+        width:40;
+        height:10
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        yield Static("One", id="one")
+        yield Static("Two", id="two")
+        yield Static("Three", id="three")
+
+
+app = OrderApp()
+if __name__ == "__main__":
+    app.run()