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- <html>
- <body>
- <canvas id="canvas" width="500" height="500"></canvas>
- <script>
- const canvas = document.getElementById('canvas');
- const ctx = canvas.getContext('2d');
- ctx.fillStyle = 'rgb(0, 255, 0)';
- ctx.fillRect(0, 0, 500, 500);
- </script>
- </body>
- </html>
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