add classes to footer

Author: Tanya Butenko

index.html

@@ -30,13 +30,13 @@ <h1>Hello everyone. Let's do some interactive coding today! </h1>
 
 <footer>
   <ul>
-    <li>Twitter:
-      <a href="https://twitter.com/NodeGirlsSydney">@NodeGirlsSydney</a>
+    <li class="twitter">
+      Twitter: <a href="https://twitter.com/NodeGirlsSydney">@NodeGirlsSydney</a>
       <a href="https://twitter.com/NodeGirlsMelb">@NodeGirlsMelb</a>
     </li>
-    <li>Facebook: <a href="https://www.facebook.com/NodeGirlsAustralia">NodeGirlsAustralia</a></li>
-    <li>Website: <a href="http://nodegirls.com.au">http://nodegirls.com.au</a></li>
-    <li>e-mail: <a href="mailto:info@nodegirls.com.au">info@nodegirls.com.au</a></li>
+    <li class="facebook">Facebook: <a href="https://www.facebook.com/NodeGirlsAustralia">NodeGirlsAustralia</a></li>
+    <li class="website">Website: <a href="http://nodegirls.com.au">http://nodegirls.com.au</a></li>
+    <li class="email">e-mail: <a href="mailto:info@nodegirls.com.au">info@nodegirls.com.au</a></li>
   </ul>
 </footer>