Add assets and revise index.html with assets

index.css

@@ -1,7 +1,7 @@
 body {
   font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
   margin: 0 auto;
-  width: 80%;
+  width: 60%;
 }
 
 nav {
@@ -20,10 +20,20 @@ nav ul li {
   margin-right: 1rem;
 }
 
+img {
+  padding: 1rem;
+}
+
 textarea {
   width: 100%;
 }
 
+footer {
+  margin: 0 auto;
+  padding: 1rem;
+  text-align: center;
+}
+
 #layout {
   border: 1px solid lightgray;
   padding: 1rem;

index.html

@@ -21,14 +21,24 @@ <h1>Willkommen</h1>
     <p>Welcome to the House of HTML on the internet. Stay a while and read on.</p>
     <h2>HTML</h2>
     <p><abbr title="Hyper Text Markup Language">HTML</abbr> stands for Hyper Text Markup Language, and although it's not a programming
-      language, it is the foundation of the web.  HTML defines the structure underlying the internet's content.  It's the wood and steel that frames every website and web
-      application.  It's the skeleton that the rest of the web builds upon to define meaning and present information.  If you want to learn how to build on the web, you 
-      have to start with HTML.
+      language, it is the foundation of the web.  HTML is called a markup language, because it's a way to <em>mark up</em> regular text 
+      to specify structure.  It's the wood, steel, and concrete that frames every website and web application.  It's the skeleton that 
+      the rest of the web builds upon to define meaning and present information.
+    </p>
+    <img src="assets/mirko-blicke-V_y81v_lI4k-unsplash.jpg" alt="Photo by Mirko Blicke on Unsplash" width="90%">
+    <p>
+      Everything is built on top of HTML's foundation.  If you want to learn how to build on the web, you have to start with HTML.
     </p>
     <h2>Haus</h2>
     <p>
-      Haus is the German word for house.  
+      Haus is the German word for house.  It comes from Middle High German hūs, and it's pronounced /haʊ̯s/. 
+      <audio controls>
+        <source src="assets/De-Haus.ogg" type="audio/ogg">
+        Your browser does not support the audio element.
+      </audio>
     </p>
+
+    <img src="assets/jesse-roberts-561igiTyvSk-unsplash.jpg" alt="Photo by Jesse Roberts on Unsplash" width="90%">
     <p>
       Together, HTML Haus is your home for learning how to build websites using HTML by starting with the foundation, the structure, the bones of the internet. HTML Haus 
       is both a resource for learning HTML from scratch and a reference for advanced users including a template library that features best practices to help you get
@@ -41,7 +51,7 @@ <h2>Haus</h2>
       <li>Templates for rapid deployment</li>
     </ul>
     <footer>
-      Created by RCH
+      Created by <a href="https://rchillard.com/">RCH</a>
     </footer>
   </body>
 </html>