styles + rotate prompt

client/src/components/mnml.jsx

@@ -7,15 +7,26 @@ const Controls = require('./controls');
 const Footer = require('./footer');
 
 const addState = connect(
-    state => ({ showNav: state.showNav })
+    ({ game, instance }) => ({ game, instance })
 );
 
 function Mnml(args) {
+    const {
+        game,
+        instance,
+    } = args;
+
+    const rotateClass = (game || instance) && window.innerWidth < window.innerHeight
+        ? 'show'
+        : '';
+
     return (
         <div id="mnml">
             <Main />
             <Controls />
             <Footer />
+            <div id="rotate" class={rotateClass} >
+            </div>
         </div>
     );
 }