<!--
Copyright 2023 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<html>
<head>
<!-- Centralizes the canvas element in the middle of the frame. -->
<style type="text/css">
.canvas {
display: block;
width: 100%;
height: 100%;
position: absolute;
outline-style: solid;
outline-width: 4px;
outline-color: red;
outline-offset: -4px;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
</style>
</head>
<body onload="init()">
<canvas id="test_canvas" class="canvas" ></canvas>
</body>
</html>