Flip local video.

css/main.css

 #largeVideo {
 }
 
+#localVideo {
+    -moz-transform: scaleX(-1);
+    -webkit-transform: scaleX(-1);
+    -o-transform: scaleX(-1);
+    transform: scaleX(-1);
+}
+
 #remoteVideos {
     display:block;
     position:relative;