| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <canvas style="position:absolute; top:40px; left:40px" width="200" height="200"></canvas> | |
| <script> | |
| var canvas = document.querySelector("canvas"); | |
| var context = canvas.getContext("2d"); | |
| context.fillStyle = "red"; | |
| context.fillRect(0, 0, 200, 200); | |
| </script> | |
| </body> | |
| </html> |