fix(aio): improve no-javascript screen

Author: gkalpak

aio/src/index.html

@@ -70,16 +70,18 @@
   <aio-shell></aio-shell>
 
   <noscript>
-    <header class="background-sky">
-      <div class="background-superhero-paper hero is-large">
-        <img class="hero-logo" src="assets/images/logos/angular/angular.svg" alt="Angular" />
-        <h1 class="text-headline">One framework.<br>Mobile &amp; desktop.</h1>
-        <br />
-        <h3 style="color:yellow">
-          This website requires JavaScript.
-        </h3>
+    <div class="background-sky hero"></div>
+    <section id="intro">
+      <div class="hero-logo">
+        <img src="assets/images/logos/angular/angular.svg" width="250" height="250">
       </div>
-    </header>
+      <div class="homepage-container">
+        <div class="hero-headline">One framework.<br>Mobile &amp; desktop.</div>
+      </div>
+      <h2 style="color: red; text-align: center;">
+        <b><i>This website requires JavaScript.</i></b>
+      </h2>
+    </section>
   </noscript>
 </body>
 </html>