var tela = document.querySelector('canvas'); var pincel = tela.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(175, 90, 90, 90);
pincel.fillStyle = 'black';
pincel.fillRect(335, 90, 90, 90);
pincel.fillStyle = 'black';
pincel.fillRect(265, 180, 70, 100);
pincel.fillStyle = 'black';
pincel.fillRect(225, 250, 40, 100);
pincel.fillStyle = 'black';
pincel.fillRect(335, 250, 40, 100);