diff --git a/demo.html b/demo.html
index 74096f1..afe772a 100644
--- a/demo.html
+++ b/demo.html
@@ -102,7 +102,7 @@
                     </div>
                 </div>
             </div>
-            <div class="background blur"></div>
+            <div id="mac-desktop-scene" class="background blur"></div>
         </div>
 
         <div id="mac-menu" class="hidden backgroud_blur">
diff --git a/index.html b/index.html
index 68aa2f9..037bbba 100644
--- a/index.html
+++ b/index.html
@@ -69,7 +69,7 @@
                     </div>
                 </div>
             </div>
-            <div class="background blur"></div>
+            <div id="mac-desktop-scene" class="background blur"></div>
         </div>
         <div id="mac-menu" class="hidden backgroud_blur">
             <div class="list mac-menu-hidden animated animated-slideOutLeft">