chore: fix demo page logo size on mobile

Author: hperrin

includes/style.css

@@ -29,6 +29,9 @@ Copyright (C) 2012 SciActive.com. All Rights Reserved.
 .page-section {
   margin-bottom: 8rem;
 }
+#logo {
+  max-width: 100%;
+}
 #copyright {
   text-align: center;
   margin-top: 40px;

index.html

@@ -198,7 +198,7 @@
   </nav>
 
   <section class="container page-banner" id="overview">
-    <h1><img src="includes/logo.png" alt="PNotify" /></h1>
+    <h1><img src="includes/logo.png" alt="PNotify" id="logo" /></h1>
     <p id="description">Beautiful notifications and prompts.</p>
     <p class="dev-note" style="display: none;">
       You probably want to go to the <a href="https://sciactive.com/pnotify/">production site</a>, cause things will be broken here.