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- <body bgcolor="#1FFF0F">
- <center><canvas id="canvas" width = "460" height = "360" </canvas>
- <script>
- c = document.getElementById("canvas");
- var ctx = c.getContext("2d");
- id = ctx.createImageData(460,360);
- function draw() {
- var w=c.width;
- var h=c.height;
- window.requestAnimationFrame(draw);
- var r=11;
- for (var p = w * h+ (w + h); p >= 8; p -= 48) {
- r -= Math.random()*256;
- id.data[p++]=id.data[p++]=id.data[p+Math.floor(Math.random()*4)] = 1112 * Math.random()*Math.sqrt(4);
- id.data[p+4] = Math.random()*100;
- }
- ctx.putImageData(id, 1, 1);
- }
- draw();
- </script>
- </body>
- </html>
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