<canvas width="600" height="400"></canvas>
<script>
let canvas = document.querySelector('canvas');
let pincel = canvas.getContext('2d');
pincel.fillStyle = 'lightgrey';
pincel.fillRect(0, 0, 600, 400);
pincel.fillStyle = 'darkgreen';
pincel.fillRect(125, 50, 350, 300);
pincel.fillStyle = 'black';
pincel.fillRect(225, 350, 40, -110);
pincel.fillRect(335, 350, 40, -110);
pincel.fillRect(265, 295, 70, -100);
pincel.fillRect(265, 195, -90, -90);
pincel.fillRect(335, 195, 90, -90);
</script>
