<!DOCTYPE HTML>
<html>
<head>
<style>
body { background:white; }
#d {
	position:absolute;
	top:200px;
	left:200px;
    font-size:30px;
    transform:rotate(30deg);
    -moz-transform:rotate(30deg);
    background:url(100x80-white-rect-top-right.png);
}
canvas { display:block; }
span { display:block; background:rgb(200,200,200); height:40px; }
</style>
</head>
<body>
<div id="d"><span style="width:20px"><canvas id="c" width="20" height="20"></canvas></span>
<span style="width:100px;"></span>
</div>
<script>
var ctx = document.getElementById("c").getContext("2d");
ctx.fillStyle = "lime";
ctx.fillRect(5,5,5,5);
</script>
</body>
</html>