mobile fixes

Author: Adam Argyle

app/css/index.css

@@ -67,6 +67,7 @@ nav {
   }
 
   @media (max-width: 720px) {
+    background: var(--brand);
     inline-size: 100%;
     place-content: center;
 

app/js/index.js

@@ -23,7 +23,7 @@ const copyToClipboard = text => {
   }
 }
 
-$('body').on('click', e => {
+$demo.on('click', e => {
   update(state.transition)
 })