| <body> | |
| <canvas id="canvas" width="100" height="100"> | |
| <script> | |
| const canvas = document.getElementById("canvas"); | |
| const ctx = canvas.getContext("2d"); | |
| const { width, height } = canvas; | |
| ctx.fillStyle = "green"; | |
| ctx.fillRect(0, 0, width, height); | |
| </script> | |
| </body> |