add card back side

css/flippy.css

@@ -96,7 +96,7 @@ flippy.fancy flippy-front {
   width: inherit;
   height: inherit;
   border: 1px solid #ccc;
-  background: white;
+  background: #FAE944;
   text-align: center;
   box-shadow: 0 1px 5px rgba(0, 0, 0, 0.9);
 }

css/pexeso.css

@@ -1,5 +1,6 @@
 body {
 	margin: 0;
+	background: lightyellow;
 }
 
 #mainContent {

img/cards/images.txt

@@ -1,5 +1,6 @@
-Images available under CC
+Images available under CC or Public Domain
 
+OpenClips
 barrel - http://pixabay.com/en/barrel-keg-wood-vintage-wooden-575341/
 butterfly - http://pixabay.com/en/animal-butterfly-insect-nature-156895/
 carrot - http://pixabay.com/en/carrot-vegetable-food-fresh-575529/

index.html

@@ -51,11 +51,11 @@
     timing-function="ease-in-out">
 
         <flippy-front>
-            ?
+            <span class="cardHelper"></span><img ng-src="img/cards/question.png">
         </flippy-front>
 
         <flippy-back>
-            <span class="cardHelper"></span><img ng-src="img/cards/{{card.cardId}}.png" ng-show="card.cardType == 'picture'"></span>
+            <span class="cardHelper"></span><img ng-src="img/cards/{{card.cardId}}.png" ng-show="card.cardType == 'picture'">
             <div ng-hide="card.cardType == 'picture'">{{card.card['en-US']}}</div>
         </flippy-back>