added wrapper and navbar

app/pages/New.js

@@ -1,12 +0,0 @@
-import React from 'react';
-
-export default class New extends React.Component {
-
-    render() {
-        return (
-            <div>
-                Test new page
-            </div>
-        );
-    }
-}

app/pages/NotFound/NotFound.js

@@ -1,10 +1,11 @@
 import React from 'react';
+import './NotFound.scss';
 
 export default class Default extends React.Component {
     render() {
         return (
-            <div className="Default">
-                404
+            <div className="NotFound">
+                404 Not Found
             </div>
         );
     }

app/pages/NotFound/NotFound.scss

@@ -0,0 +1,8 @@
+.NotFound {
+    height: 100%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    
+    font-size: 20px;
+}