<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>creeper</title>
</head>
<body>
</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(130,140,90,100);
pincel.fillStyle="black";
pincel.fillRect(100,200,40,100);
pincel.fillStyle="black";
pincel.fillRect(210,200,40,100);
pincel.fill()
</script>
</body>
</html>