Basic layout

src/App.tsx

@@ -1,8 +1,31 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 import React from "react";
-import "./App.css";
+import "./App.scss";
+
+import SingleColumn from "./layouts/SingleColumn";
 
 function App() {
-  return <div className="App"></div>;
+  return (
+    <SingleColumn>
+      <div className="topSpacer" />
+      <div className="bottomSpacer" />
+    </SingleColumn>
+  );
 }
 
 export default App;