<!DOCTYPE html> | |
<html> | |
<head></head> | |
<body> | |
<canvas id="myCanvas" width="512" height="256"></canvas> | |
</body> | |
<script> | |
var canvas = document.getElementById("myCanvas"); | |
var ctx = canvas.getContext('2d'); | |
ctx.fillStyle = "green"; | |
ctx.fillRect(canvas.width/2, 0, canvas.width/2, canvas.height); | |
</script> | |
</html> |