| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| </head> |
| <style> |
| html, body { |
| margin: 0; |
| } |
| canvas { |
| display: block; |
| } |
| </style> |
| <body> |
| <canvas id="dest" height="100" width="100"></canvas> |
| <script type="text/javascript"> |
| |
| var sourceWidth = 50; |
| var sourceHeight = 50; |
| var destCanvas = document.getElementById('dest'); |
| var destCtx = destCanvas.getContext('2d'); |
| destCtx.fillStyle = "#FF0000"; |
| destCtx.fillRect(0, 0, destCanvas.width, destCanvas.height); |
| destCtx.fillStyle = "#00FFFF"; |
| destCtx.fillRect(50, 50, sourceWidth, sourceHeight); |
| destCtx.fillStyle = "#000000"; |
| destCtx.fillRect(55, 55, 40, 40); |
| |
| </script> |
| </body> |
| </html> |
