diff --git a/index.html b/index.html
index bbae827..32aff42 100644
--- a/index.html
+++ b/index.html
@@ -38,14 +38,14 @@
 
 
 <!--https://www.shadertoy.com/embed/wttfW2?gui=&t=10&paused=false&muted=false-->
-<!--<iframe id="bg" width="640" height="360" frameborder="0" src="https://www.shadertoy.com/embed/WldfWX?gui=&t=10&paused=false&muted=false" allowfullscreen></iframe>-->
-<!--
+<iframe id="bg" width="640" height="360" frameborder="0" src="https://www.shadertoy.com/embed/WldfWX?gui=&t=10&paused=false&muted=false" allowfullscreen></iframe>
+
 <script>
 
 document.getElementById("bg").width = window.innerWidth;
 document.getElementById("bg").height = window.innerHeight;
 </script>
--->
+
 <div id="tetris">
 
 	<canvas id="scene"></canvas>