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<!DOCTYPE HTML>
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<html>
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<body>
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<canvas id="myCanvas">your browser does not support the canvas tag </canvas>
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<script type="text/javascript">
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var canvas=document.getElementById('myCanvas');
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var ctx=canvas.getContext('2d');
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ctx.fillStyle='#FF0000';
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ctx.fillRect(0,0,80,100);
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</script>
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</body>
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</html>

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