<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
<head>
<title>Styling the CANVAS element</title>
<style type="text/css">
    canvas{
    position: absolute;
    top:37px; left:4em;
    background:lime;
    border:.5em solid black;
    height:1em;
    width:1em;
    display:block;
}
</style>
</head>
<body>
    <canvas></canvas>
</body>
</html>