4 <meta name=
"viewport" content=
"width=device-width, minimum-scale=1.0, maximum-scale=1.0">
5 <title>requestAnimationFrame Test
</title>
6 <style type=
"text/css">
15 background: rgb
(128, 128, 128);
20 <div id=
"container"></div>
21 <script type=
"text/javascript">
22 var container
= document
.getElementById('container');
28 container
.style
.backgroundColor
= "rgb("+c
+","+c
+","+c
+")";
29 requestAnimationFrame(tick
);