<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="tweetmeme-title" content="Retweet Button Explained" />
<meta name="theme-color" content="#ff0000" />
<script src="https://cdn.tailwindcss.com"></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Programa 3</title>
</head>
<body>
<canvas width="350" height="300"></canvas>
<script>
var pantalla = document.querySelector("canvas");
var pincel = pantalla.getContext("2d");
pincel.fillStyle = "green";
pincel.fillRect(0,0, 350,300);
pincel.fillStyle = "black";
pincel.fillRect(50,50,90,90);
pincel.fillStyle = "black";
pincel.fillRect(210,50, 90,90);
pincel.fillStyle = "black";
pincel.fillRect(140,140, 70,100);
//pincel.fillStyle = "black";
//pincel.fillRect(100,200, 140,70);
pincel.fillStyle = "black";
pincel.fillRect(100,190, 40,110);
pincel.fillStyle = "black";
pincel.fillRect(100,190, 40,110);
pincel.fillStyle = "black";
pincel.fillRect(200,190, 40,110);
</script>
</body>
</html>